LEGAL PROCEEDINGS	12 Months Ended
Dec. 31, 2017
Commitments And Contingencies Disclosure [Abstract]
LEGAL PROCEEDINGS	NOTE 18 – LEGAL PROCEEDINGS We operate in highly regulated industries and must deal with regulatory inquiries or investigations from time to time that may be initiated for a variety of reasons. We are also involved in a variety of civil litigation from time to time. The Company establishes an accrued liability for loss contingencies related to legal and regulatory matters when the loss is both probable and reasonably estimable. If a loss is not probable or a probable loss is not reasonably estimable, no liability is recorded. These accruals represent management's best estimate of probable losses and, in such cases, there may be an exposure to loss in excess of the amounts accrued. Legal and regulatory matters inherently involve significant uncertainties based on, among other factors, the stage of the proceedings, developments in the applicable facts or law, and the unpredictability of the ultimate determination of the merits of any claim, any defenses the Company may assert against that claim and the amount of any damages that may be awarded. The Company's accrued liabilities for loss contingencies related to legal and regulatory matters may change in the future as a result of new developments, including, but not limited to, the occurrence of new legal matters, changes in the law or regulatory environment, adverse or favorable rulings, newly discovered facts relevant to the matter, or changes in the strategy for the matter. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources and other factors. Contract Class Action Lawsuits. We were served on March 12, 2013 with a class action complaint filed in the U.S. District Court for the Western District of Pennsylvania by an individual plaintiff for itself and on behalf of all other “similarly situated” customers of ours. The complaint alleged, among other things, that we had imposed unauthorized or excessive price increases and other charges on our customers in breach of our contracts and in violation of the Illinois Consumer Fraud and Deceptive Business Practices Act. The complaint sought certification of the lawsuit as a class action and the award to class members of appropriate damages and injunctive relief. The Pennsylvania class action complaint was filed in the wake of a settlement with the State of New York of an investigation under the New York False Claims Act which arose out of the qui tam (or “whistle blower”) action captioned United States of America ex rel. Jennifer D. Perez v. Stericycle, Inc., Case No. 1:08-cv-2390, which was settled in the fourth quarter of 2015 as previously disclosed. Following the filing of the Pennsylvania class action complaint, we were served with class action complaints filed in federal and state courts in several jurisdictions. These complaints asserted claims and allegations substantially similar to those made in the Pennsylvania class action complaint. All of these cases appear to be follow-on litigation to our settlement with the State of New York. On August 9, 2013, the Judicial Panel on Multidistrict Litigation granted our Motion to Transfer these related actions to the United States District Court for the Northern District of Illinois for centralized pretrial proceedings (the “MDL Action”). On December 10, 2013, we filed our answer to the Amended Consolidated Class Action Complaint in the MDL Action, generally denying the allegations therein. Plaintiffs subsequently filed a Second Amended Consolidated Complaint on March 8, 2016, and we filed an answer to that pleading on March 25, 2016, generally denying the allegations therein and asserting a variety of affirmative defenses. Plaintiffs filed a motion for class certification on January 29, 2016. On February 16, 2017, the Court entered an order granting plaintiffs’ motion for class certification. The Court certified a class of “[a]ll persons and entities that, between March 8, 2003 through the date of trial resided in the United States (except Washington and Alaska), were identified by Stericycle as ‘Small Quantity’ or ‘SQ’ customer, and were charged and paid more than their contractually-agreed price for Stericycle’s medical waste disposal goods and services pursuant to Stericycle’s automated price increase policy. Governmental entities whose claims were asserted in United States ex rel. Perez v. Stericycle Inc. shall be excluded from the class.” On March 2, 2017, Stericycle filed a motion for reconsideration and clarification relating to the Court’s class certification decision. The parties engaged in discussions through and overseen by a mediator regarding a potential resolution of the matter and reached an agreement in principle for settlement in July 2017 (the “Proposed MDL Settlement”). As we disclosed in a current report on Form 8-K filed on August 2, 2017, under the terms of the Proposed MDL Settlement, we will establish a common fund of $295.0 million from which will be paid all compensation to members of the settlement class, attorneys’ fees to class counsel, incentive awards to the named class representatives and all costs of notice and administration. Our existing contracts with customers will remain in force, while we will also establish as part of the Proposed MDL Settlement guidelines for future price increases and provide customers additional transparency regarding such increases. The Proposed MDL Settlement also addresses additional matters, including the availability of alternative dispute resolution for members of the settlement class. In the Proposed MDL Settlement, we are admitting no fault or wrongdoing whatsoever, and are entering into the Proposed MDL Settlement in order to avoid the cost and uncertainty of litigation. In view of the Proposed MDL Settlement, we recorded a pre-tax accrual of $295.0 million in accrued liabilities on the Consolidated Balance Sheet as of December 31, 2017 and a pre-tax charge of $295.0 million in SG&A on the Consolidated Statements of Income for the year ended December 31, 2017. On October 17, 2017, the Company executed a definitive written settlement agreement (the “Settlement”), which incorporates the terms of the agreement in principle announced in August 2017. The Settlement incorporates the terms of the Proposed MDL Settlement, described above, and proposes a global resolution of all cases and claims against the Company in the MDL Action; including the allegation that price increases implemented by the Company allegedly violated the contracts between the Company and its customers as well as various state consumer protection statutes. Under the terms of the Settlement, the Company is admitting no fault or wrongdoing whatsoever, and it is entering into the Settlement in order to avoid the cost and uncertainty of litigation. The Settlement, upon final approval by the Court following a fairness hearing, will fully and finally resolve all claims against the Company alleged in the MDL Action. On October 17, 2017, plaintiffs in the MDL Action filed Plaintiffs’ Unopposed Motion for Preliminary Approval of Class Settlement and Approval of Notice Plan. Following a hearing on October 26, 2017, the Court granted preliminary approval of the Settlement and set certain deadlines, including for notification of the class of the terms of the Settlement and the submission of opt-outs or objections to the Settlement, which deadlines have now passed. On January 12, 2018, the MDL Action was reassigned to the Honorable Robert W. Gettleman. On February 12, 2018, Plaintiffs filed a Motion for Final Approval of Class Settlement with the Court. A fairness hearing on the Settlement is currently anticipated to be held in March 2018. Securities Class Action Lawsuit. On July 11, 2016, two purported stockholders filed a putative class action complaint in the U.S. District Court for the Northern District of Illinois. The plaintiffs purported to sue for themselves and on behalf of all purchasers of our publicly traded securities between February 7, 2013 and April 28, 2016, inclusive, and all those who purchased securities in our public offering of depositary shares, each representing a 1/10th interest in a share of our mandatory convertible preferred stock, on or around September 15, 2015. The complaint named as defendants the Company, our directors and certain of our current and former officers, and certain of the underwriters in the public offering. The complaint purports to assert claims under Sections 11, 12(a)(2) and 15 of the Securities Act of 1933 and Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as well as SEC Rule 10b-5, promulgated thereunder. The complaint alleges, among other things, that the Company imposed unauthorized or excessive price increases and other charges on its customers in breach of its contracts, and that defendants failed to disclose those alleged practices in public filings and other statements issued during the proposed class period beginning February 7, 2013 and ending April 28, 2016. On August 4, 2016, plaintiffs filed an Amended Complaint that purports to assert additional misrepresentations in public statements through July 28, 2016, and therefore to change the putative class period to the period from February 7, 2013 to July 28, 2016, inclusive. On October 21, 2016, plaintiffs filed a Corrected Amended Complaint adding the Company as a named defendant in plaintiff’s claim under Section 11 of the Securities Act, which had previously been asserted only against the Underwriters and certain officers and directors. On November 1, 2016, the Court appointed the Public Employees’ Retirement System of Mississippi and the Arkansas Teacher Retirement System as Lead Plaintiffs and their counsel as Lead Counsel. On February 1, 2017, Lead Plaintiff filed a Consolidated Amended Complaint with additional purported factual material supporting the same legal claims from the prior complaints for a class period from February 7, 2013 through September 18, 2016. Defendants filed a motion to dismiss the Consolidated Amended Complaint on April 1, 2017. On May 19, 2017, plaintiffs filed a response in opposition to the motion to dismiss and on June 19, 2017, Defendants filed a reply brief in support of their motion. The motion to dismiss is currently pending. We intend to vigorously defend ourselves against this lawsuit. We have not accrued any amounts in respect of this lawsuit, and we cannot estimate the reasonably possible loss or the range of reasonably possible losses that we may incur. We are unable to make such an estimate because (i) litigation is by its nature uncertain and unpredictable, (ii) we do not know whether the court will certify any class of plaintiffs or, if any class is certified, how the class would be defined, and (iii) in our judgment, the factual and legal allegations asserted by plaintiffs are sufficiently unique that we are unable to identify other proceedings with circumstances sufficiently comparable to provide guidance in making estimates. Shareholder Derivative Lawsuits. On September 1, 2016, a purported stockholder filed a putative derivative action complaint in the Circuit Court of Cook County, Illinois against certain officers and directors of the Company, naming the Company as nominal defendant. The complaint alleges that defendants breached their fiduciary duties to the Company and its stockholders by causing the Company to allegedly overcharge certain customers in breach of those customers’ contracts, otherwise provide unsatisfactory customer service and injure customer relationships, and make materially false and misleading statements and omissions regarding the Company’s business, operational and compliance policies between February 7, 2013 and the present. On March 1, 2017, another purported stockholder filed a putative derivative action complaint containing substantially similar allegations in the Circuit Court of Cook County, Illinois against certain officers and directors of the Company, naming the Company as nominal defendant. The Company notes, among other things that, in addition to failing to make the required demand on the board of directors, both of these filings are in violation of the Company’s Bylaws, which require any such actions to be brought in a court in Delaware. On June 29, 2017, the Court entered an agreed order consolidating the two putative derivative actions for all purposes under the caption Kausal Shah v. Charles A. Alutto, et al. On July 11, 2017, the Court entered a further agreed order appointing lead counsel for plaintiffs and staying the action pending resolution of the motion to dismiss the securities class action discussed above. Pursuant to the agreed order, defendants reserve all potential defenses to both actions, should the stay be lifted. We intend to vigorously defend ourselves against this consolidated lawsuit. We have not accrued any amounts in respect of these lawsuits, and we cannot estimate the reasonably possible loss or the range of reasonably possible losses that we may incur. We are unable to make such an estimate because (i) litigation is by its nature uncertain and unpredictable and (ii) in our judgment; the factual and legal allegations asserted by plaintiffs are sufficiently unique that we are unable to identify other proceedings with circumstances sufficiently comparable to provide guidance in making estimates. Shareholder Demand Letter. On October 18, 2016, the Company received a letter from an attorney purporting to represent a current stockholder of the Company demanding, pursuant to Del. Ct. Ch. R. 23.1, that the Company’s Board of Directors take action to remedy alleged breaches of fiduciary duties by certain officers and directors of the Company. The factual allegations set forth in the letter are similar to those asserted in the Securities Class Action Lawsuit and the Shareholder Derivative Lawsuit. The letter asserts breaches of fiduciary duty in connection with the management, operation and oversight of the Company’s business and in connection with alleged false, misleading and/or incomplete statements regarding the Company’s business practices. The Company’s Board of Directors has constituted a Special Demand Review Committee to investigate the claims made in the demand letter and the Committee has retained independent counsel to assist with the investigation. The Committee’s investigation is ongoing. TCPA Lawsuit. On June 3, 2016, a plaintiff filed a putative class action, captioned Ibrahim v. Stericycle, Inc., No. 16-cv-4294 (N.D. Ill.), against us and our wholly-owned subsidiary, Stericycle Communication Solutions, Inc., under the Telephone Consumer Protection Act (“TCPA”), asserting that the defendants called plaintiff and others in violation of that statute. Plaintiff challenges our use of pre-recorded messages that urge the owners of recalled products to return or obtain repairs for those products. Plaintiff seeks certification of two nationwide classes. One class includes people who received one or more cellular telephone calls from Stericycle featuring a prerecorded or artificial voice message relating to a product recall, where the called party was not the same individual who, according to Stericycle’s records, was the intended recipient of the call. The second class includes people who received one or more cellular telephone calls from Stericycle featuring a prerecorded or artificial voice message relating to a product recall after such person had communicated to Stericycle that Stericycle did not have consent to make any such calls to their cellular telephone number. On July 28, 2016, we answered the complaint, denying the material allegations and raising certain affirmative defenses. Among the asserted defenses is the “emergency” exception to the TCPA, which exempts calls made to promote public health and safety. On December 19, 2016, before any substantial discovery in the case, we filed a motion for summary judgment primarily on the basis of the “emergency” exception. On February 1, 2017, plaintiff responded to our motion by requesting additional discovery. The court permitted plaintiff to obtain some but not all of the requested discovery, and we have provided additional documents in response to that order. On April 5, 2017, plaintiff sought leave to file an amended complaint which would add a claim under the Illinois Automatic Telephone Dialers Act (which does not include an “emergency” exception) and certain additional allegations. We filed an opposition to this motion on April 28, 2017, contending that the proposed amendments are futile and that we are entitled to summary judgment. On June 27, 2017, the court permitted plaintiff to file the amended complaint. We have answered plaintiff’s amended complaint, denying liability, and in light of the amended complaint, have withdrawn our motion for summary judgment without prejudice. The parties are currently conducting discovery. The deadline for completion of fact discovery is May 15, 2018. We intend to vigorously defend ourselves against this lawsuit. We have not accrued any amounts in respect of this lawsuit, and we cannot estimate the reasonably possible loss or the range of reasonably possible losses that we may incur. We are unable to make such an estimate because (i) litigation is by its nature uncertain and unpredictable, (ii) we do not know whether the court will certify any class of plaintiffs or, if any class is certified, how the class would be defined, and (iii) in our judgment, the factual and legal allegations asserted by plaintiff are sufficiently unique that we are unable to identify other proceedings with circumstances sufficiently comparable to provide guidance in making estimates. FCPA Investigation. On June 12, 2017, the SEC issued a subpoena to the Company, requesting documents and information relating to the Company’s compliance with the Foreign Corrupt Practices Act (“FCPA”) or other foreign or domestic anti-corruption laws with respect to certain of the Company’s operations in Latin America. In addition, the Department of Justice has notified the Company that it is investigating this matter in parallel with the SEC. The Company is cooperating with these agencies. The Company is also conducting an internal investigation of these and other matters, including outside of Latin America, under the oversight of the Audit Committee of the Board of Directors and with the assistance of outside counsel, and this investigation has found evidence of improper conduct. We have not accrued any amounts in respect of this matter, as we cannot estimate any reasonably possible loss or any range of reasonably possible losses that we may incur. We are unable to make such an estimate because, based on what we know now, in our judgment, the factual and legal issues presented in this matter are sufficiently unique that we are unable to identify other circumstances sufficiently comparable to provide guidance in making estimates. Environmental Matters. Our Environmental Solutions business is regulated by federal, state and local laws enacted to regulate the discharge of materials into the environment, remediate contaminated soil and groundwater or otherwise protect the environment. As a result of this continuing regulation, we frequently become a party to legal or administrative proceedings involving various governmental authorities and other interested parties. The issues involved in these proceedings generally relate to alleged violations of existing permits and licenses or alleged responsibility under federal or state Superfund laws to remediate contamination at properties owned either by us or by other parties to which either we or the prior owners of certain of its facilities shipped wastes. From time to time, we may be subject to fines or penalties in regulatory proceedings relating primarily to waste treatment, storage or disposal facilities. North Salt Lake, Utah. The United States Attorney’s Office for the District of Utah (the “USAO”) and the Criminal Investigation Division of the U.S. Environmental Protection Agency (the “EPA”) are conducting an investigation of the same facts underlying the notice of violation (the “NOV”) issued by the State of Utah Division of Air Quality (the “DAQ”) that resulted in our December 2014 settlement with the DAQ that we have previously disclosed. The USAO and EPA investigated whether the matters forming the basis of the NOV constitute criminal or civil violations of the Clean Air Act and other federal statutes. In February 2018, the USAO advised us that it would not pursue criminal penalties in the matter. We intend to continue cooperating with the EPA and DOJ to resolve the matter civilly. The Company has accrued its estimate of the probable loss for this matter in accrued liabilities which is not material. Rancho Cordova, California. The California Department of Toxic Substances Control (“DTSC”) has alleged violations of California’s Hazardous Waste Control Law for our hazardous waste facility in Rancho Cordova, California for the years 2011 through 2017. DTSC has referred the matter to the California Attorney General’s office. On March 3, 2016, we entered into a tolling agreement with the Attorney General’s office, which was subsequently extended through October 30, 2017. Under the tolling agreement as extended, the period from February 29, 2016 through October 30, 2017 will be excluded from any calculation of time for the purpose of determining the statute of limitations concerning any charges that we violated the Hazardous Waste Control Law. The tolling agreement does not constitute an admission of guilt or wrongdoing on our part and cannot be construed as a waiver of any other rights or defenses that we may have in any resulting action or proceeding. On October 26, 2017, DTSC filed a complaint in California Superior Court in Sacramento County for civil penalties and injunctive relief for alleged violations of California's Hazardous Waste Control Law. We continue to engage in discussions with DTSC regarding the parties’ current factual and legal positions. We will continue to evaluate DTSC’s position and to explore a number of potential alternatives, including a negotiated resolution and potential litigation. The Company has accrued its estimate of the probable loss for this matter in accrued liabilities which is not material. Tabasco, Mexico. The National Agency for Industrial Security and the Protection of the Environment for the Hydrocarbon Sector in Mexico (“ASEA”) has conducted a permit compliance inspection at a hazardous waste treatment facility acquired by one of our subsidiaries in Dos Bocas, Tabasco, Mexico. ASEA has claimed that the contaminated soil treatment process described in the treatment permit had not been followed properly and has issued an order imposing a fine and directing that the facility be closed and that alleged contamination on a certain portion of the facility be remediated. Our subsidiary has engaged a firm of environmental technicians to assess the contamination described in the ASEA order and to conduct a broader environmental assessment of the facility. The preliminary estimate of the remediation costs necessary to address the ASEA order was $2.0 million. Our review and assessment of the overall facility is ongoing. In November 2017, ASEA issued an order revoking the prior order imposing a fine and requiring that ASEA reassess the evidence and arguments presented. At this time we are unable to reasonably estimate the future cost of any remedial obligations at the facility beyond the preliminary estimate. We have recorded a pre-tax charge of $2.0 million for this matter in accrued liabilities on our Consolidated Balance Sheet as of December 31, 2017.

NOTE 18 – LEGAL PROCEEDINGS

We operate in highly regulated industries and must deal with regulatory inquiries or investigations from time to time that may be initiated for a variety of reasons. We are also involved in a variety of civil litigation from time to time.

The Company establishes an accrued liability for loss contingencies related to legal and regulatory matters when the loss is both probable and reasonably estimable. If a loss is not probable or a probable loss is not reasonably estimable, no liability is recorded. These accruals represent management's best estimate of probable losses and, in such cases, there may be an exposure to loss in excess of the amounts accrued. Legal and regulatory matters inherently involve significant uncertainties based on, among other factors, the stage of the proceedings, developments in the applicable facts or law, and the unpredictability of the ultimate determination of the merits of any claim, any defenses the Company may assert against that claim and the amount of any damages that may be awarded. The Company's accrued liabilities for loss contingencies related to legal and regulatory matters may change in the future as a result of new developments, including, but not limited to, the occurrence of new legal matters, changes in the law or regulatory environment, adverse or favorable rulings, newly discovered facts relevant to the matter, or changes in the strategy for the matter. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources and other factors.

Contract Class Action Lawsuits. We were served on March 12, 2013 with a class action complaint filed in the U.S. District Court for the Western District of Pennsylvania by an individual plaintiff for itself and on behalf of all other “similarly situated” customers of ours. The complaint alleged, among other things, that we had imposed unauthorized or excessive price increases and other charges on our customers in breach of our contracts and in violation of the Illinois Consumer Fraud and Deceptive Business Practices Act. The complaint sought certification of the lawsuit as a class action and the award to class members of appropriate damages and injunctive relief.

The Pennsylvania class action complaint was filed in the wake of a settlement with the State of New York of an investigation under the New York False Claims Act which arose out of the qui tam (or “whistle blower”) action captioned United States of America ex rel. Jennifer D. Perez v. Stericycle, Inc., Case No. 1:08-cv-2390, which was settled in the fourth quarter of 2015 as previously disclosed.

Following the filing of the Pennsylvania class action complaint, we were served with class action complaints filed in federal and state courts in several jurisdictions. These complaints asserted claims and allegations substantially similar to those made in the Pennsylvania class action complaint. All of these cases appear to be follow-on litigation to our settlement with the State of New York. On August 9, 2013, the Judicial Panel on Multidistrict Litigation granted our Motion to Transfer these related actions to the United States District Court for the Northern District of Illinois for centralized pretrial proceedings (the “MDL Action”). On December 10, 2013, we filed our answer to the Amended Consolidated Class Action Complaint in the MDL Action, generally denying the allegations therein. Plaintiffs subsequently filed a Second Amended Consolidated Complaint on March 8, 2016, and we filed an answer to that pleading on March 25, 2016, generally denying the allegations therein and asserting a variety of affirmative defenses.

Plaintiffs filed a motion for class certification on January 29, 2016. On February 16, 2017, the Court entered an order granting plaintiffs’ motion for class certification. The Court certified a class of “[a]ll persons and entities that, between March 8, 2003 through the date of trial resided in the United States (except Washington and Alaska), were identified by Stericycle as ‘Small Quantity’ or ‘SQ’ customer, and were charged and paid more than their contractually-agreed price for Stericycle’s medical waste disposal goods and services pursuant to Stericycle’s automated price increase policy. Governmental entities whose claims were asserted in United States ex rel. Perez v. Stericycle Inc. shall be excluded from the class.” On March 2, 2017, Stericycle filed a motion for reconsideration and clarification relating to the Court’s class certification decision. The parties engaged in discussions through and overseen by a mediator regarding a potential resolution of the matter and reached an agreement in principle for settlement in July 2017 (the “Proposed MDL Settlement”).

As we disclosed in a current report on Form 8-K filed on August 2, 2017, under the terms of the Proposed MDL Settlement, we will establish a common fund of $295.0 million from which will be paid all compensation to members of the settlement class, attorneys’ fees to class counsel, incentive awards to the named class representatives and all costs of notice and administration. Our existing contracts with customers will remain in force, while we will also establish as part of the Proposed MDL Settlement guidelines for future price increases and provide customers additional transparency regarding such increases. The Proposed MDL Settlement also addresses additional matters, including the availability of alternative dispute resolution for members of the settlement class. In the Proposed MDL Settlement, we are admitting no fault or wrongdoing whatsoever, and are entering into the Proposed MDL Settlement in order to avoid the cost and uncertainty of litigation.

In view of the Proposed MDL Settlement, we recorded a pre-tax accrual of $295.0 million in accrued liabilities on the Consolidated Balance Sheet as of December 31, 2017 and a pre-tax charge of $295.0 million in SG&A on the Consolidated Statements of Income for the year ended December 31, 2017.

On October 17, 2017, the Company executed a definitive written settlement agreement (the “Settlement”), which incorporates the terms of the agreement in principle announced in August 2017. The Settlement incorporates the terms of the Proposed MDL Settlement, described above, and proposes a global resolution of all cases and claims against the Company in the MDL Action; including the allegation that price increases implemented by the Company allegedly violated the contracts between the Company and its customers as well as various state consumer protection statutes. Under the terms of the Settlement, the Company is admitting no fault or wrongdoing whatsoever, and it is entering into the Settlement in order to avoid the cost and uncertainty of litigation. The Settlement, upon final approval by the Court following a fairness hearing, will fully and finally resolve all claims against the Company alleged in the MDL Action.

On October 17, 2017, plaintiffs in the MDL Action filed Plaintiffs’ Unopposed Motion for Preliminary Approval of Class Settlement and Approval of Notice Plan. Following a hearing on October 26, 2017, the Court granted preliminary approval of the Settlement and set certain deadlines, including for notification of the class of the terms of the Settlement and the submission of opt-outs or objections to the Settlement, which deadlines have now passed. On January 12, 2018, the MDL Action was reassigned to the Honorable Robert W. Gettleman. On February 12, 2018, Plaintiffs filed a Motion for Final Approval of Class Settlement with the Court. A fairness hearing on the Settlement is currently anticipated to be held in March 2018.

Securities Class Action Lawsuit. On July 11, 2016, two purported stockholders filed a putative class action complaint in the U.S. District Court for the Northern District of Illinois. The plaintiffs purported to sue for themselves and on behalf of all purchasers of our publicly traded securities between February 7, 2013 and April 28, 2016, inclusive, and all those who purchased securities in our public offering of depositary shares, each representing a 1/10th interest in a share of our mandatory convertible preferred stock, on or around September 15, 2015. The complaint named as defendants the Company, our directors and certain of our current and former officers, and certain of the underwriters in the public offering. The complaint purports to assert claims under Sections 11, 12(a)(2) and 15 of the Securities Act of 1933 and Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as well as SEC Rule 10b-5, promulgated thereunder. The complaint alleges, among other things, that the Company imposed unauthorized or excessive price increases and other charges on its customers in breach of its contracts, and that defendants failed to disclose those alleged practices in public filings and other statements issued during the proposed class period beginning February 7, 2013 and ending April 28, 2016.

On August 4, 2016, plaintiffs filed an Amended Complaint that purports to assert additional misrepresentations in public statements through July 28, 2016, and therefore to change the putative class period to the period from February 7, 2013 to July 28, 2016, inclusive. On October 21, 2016, plaintiffs filed a Corrected Amended Complaint adding the Company as a named defendant in plaintiff’s claim under Section 11 of the Securities Act, which had previously been asserted only against the Underwriters and certain officers and directors.

On November 1, 2016, the Court appointed the Public Employees’ Retirement System of Mississippi and the Arkansas Teacher Retirement System as Lead Plaintiffs and their counsel as Lead Counsel. On February 1, 2017, Lead Plaintiff filed a Consolidated Amended Complaint with additional purported factual material supporting the same legal claims from the prior complaints for a class period from February 7, 2013 through September 18, 2016. Defendants filed a motion to dismiss the Consolidated Amended Complaint on April 1, 2017. On May 19, 2017, plaintiffs filed a response in opposition to the motion to dismiss and on June 19, 2017, Defendants filed a reply brief in support of their motion. The motion to dismiss is currently pending.

We intend to vigorously defend ourselves against this lawsuit.

We have not accrued any amounts in respect of this lawsuit, and we cannot estimate the reasonably possible loss or the range of reasonably possible losses that we may incur. We are unable to make such an estimate because (i) litigation is by its nature uncertain and unpredictable, (ii) we do not know whether the court will certify any class of plaintiffs or, if any class is certified, how the class would be defined, and (iii) in our judgment, the factual and legal allegations asserted by plaintiffs are sufficiently unique that we are unable to identify other proceedings with circumstances sufficiently comparable to provide guidance in making estimates.

Shareholder Derivative Lawsuits. On September 1, 2016, a purported stockholder filed a putative derivative action complaint in the Circuit Court of Cook County, Illinois against certain officers and directors of the Company, naming the Company as nominal defendant. The complaint alleges that defendants breached their fiduciary duties to the Company and its stockholders by causing the Company to allegedly overcharge certain customers in breach of those customers’ contracts, otherwise provide unsatisfactory customer service and injure customer relationships, and make materially false and misleading statements and omissions regarding the Company’s business, operational and compliance policies between February 7, 2013 and the present.

On March 1, 2017, another purported stockholder filed a putative derivative action complaint containing substantially similar allegations in the Circuit Court of Cook County, Illinois against certain officers and directors of the Company, naming the Company as nominal defendant. The Company notes, among other things that, in addition to failing to make the required demand on the board of directors, both of these filings are in violation of the Company’s Bylaws, which require any such actions to be brought in a court in Delaware.

On June 29, 2017, the Court entered an agreed order consolidating the two putative derivative actions for all purposes under the caption Kausal Shah v. Charles A. Alutto, et al. On July 11, 2017, the Court entered a further agreed order appointing lead counsel for plaintiffs and staying the action pending resolution of the motion to dismiss the securities class action discussed above. Pursuant to the agreed order, defendants reserve all potential defenses to both actions, should the stay be lifted.

We intend to vigorously defend ourselves against this consolidated lawsuit.

We have not accrued any amounts in respect of these lawsuits, and we cannot estimate the reasonably possible loss or the range of reasonably possible losses that we may incur. We are unable to make such an estimate because (i) litigation is by its nature uncertain and unpredictable and (ii) in our judgment; the factual and legal allegations asserted by plaintiffs are sufficiently unique that we are unable to identify other proceedings with circumstances sufficiently comparable to provide guidance in making estimates.

Shareholder Demand Letter. On October 18, 2016, the Company received a letter from an attorney purporting to represent a current stockholder of the Company demanding, pursuant to Del. Ct. Ch. R. 23.1, that the Company’s Board of Directors take action to remedy alleged breaches of fiduciary duties by certain officers and directors of the Company. The factual allegations set forth in the letter are similar to those asserted in the Securities Class Action Lawsuit and the Shareholder Derivative Lawsuit. The letter asserts breaches of fiduciary duty in connection with the management, operation and oversight of the Company’s business and in connection with alleged false, misleading and/or incomplete statements regarding the Company’s business practices.

The Company’s Board of Directors has constituted a Special Demand Review Committee to investigate the claims made in the demand letter and the Committee has retained independent counsel to assist with the investigation. The Committee’s investigation is ongoing.

TCPA Lawsuit. On June 3, 2016, a plaintiff filed a putative class action, captioned Ibrahim v. Stericycle, Inc., No. 16-cv-4294 (N.D. Ill.), against us and our wholly-owned subsidiary, Stericycle Communication Solutions, Inc., under the Telephone Consumer Protection Act (“TCPA”), asserting that the defendants called plaintiff and others in violation of that statute. Plaintiff challenges our use of pre-recorded messages that urge the owners of recalled products to return or obtain repairs for those products.

Plaintiff seeks certification of two nationwide classes. One class includes people who received one or more cellular telephone calls from Stericycle featuring a prerecorded or artificial voice message relating to a product recall, where the called party was not the same individual who, according to Stericycle’s records, was the intended recipient of the call. The second class includes people who received one or more cellular telephone calls from Stericycle featuring a prerecorded or artificial voice message relating to a product recall after such person had communicated to Stericycle that Stericycle did not have consent to make any such calls to their cellular telephone number.

On July 28, 2016, we answered the complaint, denying the material allegations and raising certain affirmative defenses. Among the asserted defenses is the “emergency” exception to the TCPA, which exempts calls made to promote public health and safety. On December 19, 2016, before any substantial discovery in the case, we filed a motion for summary judgment primarily on the basis of the “emergency” exception. On February 1, 2017, plaintiff responded to our motion by requesting additional discovery. The court permitted plaintiff to obtain some but not all of the requested discovery, and we have provided additional documents in response to that order.

On April 5, 2017, plaintiff sought leave to file an amended complaint which would add a claim under the Illinois Automatic Telephone Dialers Act (which does not include an “emergency” exception) and certain additional allegations. We filed an opposition to this motion on April 28, 2017, contending that the proposed amendments are futile and that we are entitled to summary judgment. On June 27, 2017, the court permitted plaintiff to file the amended complaint. We have answered plaintiff’s amended complaint, denying liability, and in light of the amended complaint, have withdrawn our motion for summary judgment without prejudice.

The parties are currently conducting discovery. The deadline for completion of fact discovery is May 15, 2018.

We intend to vigorously defend ourselves against this lawsuit.

We have not accrued any amounts in respect of this lawsuit, and we cannot estimate the reasonably possible loss or the range of reasonably possible losses that we may incur. We are unable to make such an estimate because (i) litigation is by its nature uncertain and unpredictable, (ii) we do not know whether the court will certify any class of plaintiffs or, if any class is certified, how the class would be defined, and (iii) in our judgment, the factual and legal allegations asserted by plaintiff are sufficiently unique that we are unable to identify other proceedings with circumstances sufficiently comparable to provide guidance in making estimates.

FCPA Investigation. On June 12, 2017, the SEC issued a subpoena to the Company, requesting documents and information relating to the Company’s compliance with the Foreign Corrupt Practices Act (“FCPA”) or other foreign or domestic anti-corruption laws with respect to certain of the Company’s operations in Latin America. In addition, the Department of Justice has notified the Company that it is investigating this matter in parallel with the SEC. The Company is cooperating with these agencies. The Company is also conducting an internal investigation of these and other matters, including outside of Latin America, under the oversight of the Audit Committee of the Board of Directors and with the assistance of outside counsel, and this investigation has found evidence of improper conduct.

We have not accrued any amounts in respect of this matter, as we cannot estimate any reasonably possible loss or any range of reasonably possible losses that we may incur. We are unable to make such an estimate because, based on what we know now, in our judgment, the factual and legal issues presented in this matter are sufficiently unique that we are unable to identify other circumstances sufficiently comparable to provide guidance in making estimates.

Environmental Matters. Our Environmental Solutions business is regulated by federal, state and local laws enacted to regulate the discharge of materials into the environment, remediate contaminated soil and groundwater or otherwise protect the environment. As a result of this continuing regulation, we frequently become a party to legal or administrative proceedings involving various governmental authorities and other interested parties. The issues involved in these proceedings generally relate to alleged violations of existing permits and licenses or alleged responsibility under federal or state Superfund laws to remediate contamination at properties owned either by us or by other parties to which either we or the prior owners of certain of its facilities shipped wastes. From time to time, we may be subject to fines or penalties in regulatory proceedings relating primarily to waste treatment, storage or disposal facilities.

North Salt Lake, Utah. The United States Attorney’s Office for the District of Utah (the “USAO”) and the Criminal Investigation Division of the U.S. Environmental Protection Agency (the “EPA”) are conducting an investigation of the same facts underlying the notice of violation (the “NOV”) issued by the State of Utah Division of Air Quality (the “DAQ”) that resulted in our December 2014 settlement with the DAQ that we have previously disclosed. The USAO and EPA investigated whether the matters forming the basis of the NOV constitute criminal or civil violations of the Clean Air Act and other federal statutes. In February 2018, the USAO advised us that it would not pursue criminal penalties in the matter.

We intend to continue cooperating with the EPA and DOJ to resolve the matter civilly.

The Company has accrued its estimate of the probable loss for this matter in accrued liabilities which is not material.

Rancho Cordova, California. The California Department of Toxic Substances Control (“DTSC”) has alleged violations of California’s Hazardous Waste Control Law for our hazardous waste facility in Rancho Cordova, California for the years 2011 through 2017. DTSC has referred the matter to the California Attorney General’s office. On March 3, 2016, we entered into a tolling agreement with the Attorney General’s office, which was subsequently extended through October 30, 2017. Under the tolling agreement as extended, the period from February 29, 2016 through October 30, 2017 will be excluded from any calculation of time for the purpose of determining the statute of limitations concerning any charges that we violated the Hazardous Waste Control Law. The tolling agreement does not constitute an admission of guilt or wrongdoing on our part and cannot be construed as a waiver of any other rights or defenses that we may have in any resulting action or proceeding.

On October 26, 2017, DTSC filed a complaint in California Superior Court in Sacramento County for civil penalties and injunctive relief for alleged violations of California's Hazardous Waste Control Law. We continue to engage in discussions with DTSC regarding the parties’ current factual and legal positions. We will continue to evaluate DTSC’s position and to explore a number of potential alternatives, including a negotiated resolution and potential litigation.

The Company has accrued its estimate of the probable loss for this matter in accrued liabilities which is not material.

Tabasco, Mexico. The National Agency for Industrial Security and the Protection of the Environment for the Hydrocarbon Sector in Mexico (“ASEA”) has conducted a permit compliance inspection at a hazardous waste treatment facility acquired by one of our subsidiaries in Dos Bocas, Tabasco, Mexico. ASEA has claimed that the contaminated soil treatment process described in the treatment permit had not been followed properly and has issued an order imposing a fine and directing that the facility be closed and that alleged contamination on a certain portion of the facility be remediated. Our subsidiary has engaged a firm of environmental technicians to assess the contamination described in the ASEA order and to conduct a broader environmental assessment of the facility. The preliminary estimate of the remediation costs necessary to address the ASEA order was $2.0 million. Our review and assessment of the overall facility is ongoing. In November 2017, ASEA issued an order revoking the prior order imposing a fine and requiring that ASEA reassess the evidence and arguments presented. At this time we are unable to reasonably estimate the future cost of any remedial obligations at the facility beyond the preliminary estimate.

We have recorded a pre-tax charge of $2.0 million for this matter in accrued liabilities on our Consolidated Balance Sheet as of December 31, 2017.