FINANCING ARRANGEMENTS

The following table is a summary of the Company's financing arrangements (in thousands):



	December 31, 2012		December 31, 2011
Senior unsecured notes, at 5.25%, due August 1, 2020	$	800,000	$	—
Senior unsecured notes, at 5.125%, due June 1, 2021	600,000		—
Senior secured notes, at 7.625%, due August 15, 2016	—		520,000
Revolving credit facility, due May 31, 2016	—		—
Unamortized notes premium and discount, net	—		4,203
Long-term obligations	$	1,400,000	$	524,203

Senior Unsecured Notes, at 5.25%, due August 1, 2020. During 2012, the Company redeemed and repurchased the $520 million aggregate principal amount of 7.625% senior secured notes due 2016 ("2016 Notes"). The Company financed that purchase and redemption of the 2016 Notes through a private placement of $800.0 million aggregate principal amount of 5.25% senior unsecured notes due 2020 ("2020 Notes") which the Company completed on July 30, 2012. The Company used the remaining net proceeds from such private placement of the 2020 Notes to finance a portion of the purchase price for its 2012 acquisitions and for general corporate purposes. On November 16, 2012, the Company completed an exchange offer for the unregistered 2020 Notes originally issued for an equivalent amount of 2020 Notes the Company had registered under the Securities Act of 1933, as amended, pursuant to a registration statement which became effective in October 2012.

The principal terms of the 2020 Notes are as follows:

The 2020 Notes will mature on August 1, 2020. The notes bear interest at a rate of 5.25% per annum, computed on the basis of a 360-day year composed of twelve 30-day months. Interest is payable semi-annually on February 1 and August 1 of each year, commencing on February 1, 2013. The Company may redeem some or all of the 2020 Notes at any time on or after August 1, 2016 upon not less than 30 nor more than 60 days' notice, at the following redemption prices (expressed as percentages of the principal amount) if redeemed during the twelve-month period commencing on August 1 of the year set forth below, plus, in each case, accrued and unpaid interest, if any, to the date of redemption:



Year	Percentage
2016	102.625	%
2017	101.313	%
2018 and thereafter	100.000	%

At any time, or from time to time, prior to August 1, 2015, the Company may also redeem up to 35% of the aggregate principal amount of all the 2020 Notes issued under the indenture at a redemption price of 105.25% of the principal amount, plus accrued and unpaid interest, using proceeds from certain equity offerings, provided that after such redemption the aggregate principal amount of outstanding 2020 Notes must equal at least 65% of the aggregate principal amount of 2020 Notes issued under the indenture. Additionally, at any time, or from time to time, prior to August 1, 2016, the Company may also redeem some or all of the 2020 Notes at a redemption price of 100% of the principal amount plus a make-whole premium and any accrued and unpaid interest. Holders may require the Company to repurchase the 2020 Notes at a purchase price equal to 101% of the principal amount, plus any accrued and unpaid interest, upon a change of control of the Company.

The 2020 Notes and the related indenture contain various customary non-financial covenants and are guaranteed by substantially all the Company's current and future domestic restricted subsidiaries. The 2020 Notes are the Company's and the guarantors' senior unsecured obligations ranking equally with the Company's and the guarantors' existing and future senior unsecured obligations and senior to any future indebtedness that is expressly subordinated to the 2020 Notes and the guarantees. The 2020 Notes and the guarantees rank effectively junior in right of payment to the Company's and the guarantors' secured indebtedness (including loans and reimbursement obligations in respect of outstanding letters of credit) under the Company's revolving credit facility and capital lease obligations to the extent of the value of the assets securing such secured indebtedness. The 2020 Notes are not guaranteed by the Company's Canadian or other foreign subsidiaries, and the 2020 Notes are structurally subordinated to all indebtedness and other liabilities, including trade payables, of the Company's subsidiaries that are not guarantors of the 2020 Notes.

Senior Unsecured Notes, at 5.125%, due June 1, 2021. On December 7, 2012, the Company issued through a private placement $600.0 million aggregate principal amount of 5.125% senior unsecured notes due 2021 (the "2021 Notes"). The Company used the net proceeds from such private placement of the 2021 Notes to fund a portion of the purchase price to acquire Safety-Kleen on December 28, 2012.

The principal terms of the 2021 Notes are as follows:

The 2021 Notes will mature on June 1, 2021. The notes bear interest at a rate of 5.125% per annum. Interest is payable semi-annually on June 1 and December 1 of each year, commencing on June 1, 2013. The Company may redeem some or all of the 2021 Notes at the following redemption prices (expressed as percentages of the principal amount) if redeemed.



Year	Percentage
2016	102.563	%
2017	101.281	%
2018 and thereafter	100.000	%

At any time, or from time to time, prior to December 1, 2015, the Company may also redeem up to 35% of the aggregate principal amount of all of the 2021 Notes issued under the indenture at a redemption price equal to 105.125% of the principal amount, plus accrued and unpaid interest, using proceeds from certain equity offerings, provided that after such redemption the aggregate principal amount of outstanding 2021 Notes must equal at least 65% of the aggregate principal amount of 2021 Notes issued under the indenture. Additionally, at any time, or from time to time, prior to December 1, 2016, the Company may redeem some or all of the 2021 Notes at a price equal to 100% of the principal amount plus a make-whole premium and accrued and unpaid interest. Holders may require the Company to repurchase the notes under certain circumstances if the Company experiences a change of control.

The 2021 Notes and the related indenture contain various customary non-financial covenants and are guaranteed by substantially all the Company's current and future domestic restricted subsidiaries. The 2021 Notes are the Company's and the guarantors' senior unsecured obligations ranking equally with the Company's and the guarantors' existing and future senior unsecured obligations and senior to any future indebtedness that is expressly subordinated to the 2021 Notes and the guarantees. The 2021 Notes are effectively subordinated to all of the Company's and the Company's subsidiaries secured indebtedness under the Company's revolving credit facility and capital lease obligations to the extent of the value of the assets securing such secured indebtedness. The 2021 Notes are not guaranteed by the Company's existing and future Canadian or other foreign subsidiaries, and the 2021 Notes are structurally subordinated to all indebtedness and other liabilities, including trade payables, of the Company's subsidiaries that are not guarantors of the 2021 Notes.

Revolving Credit Facility. On January 17, 2013, the Company entered into an amendment and restatement of the previously existing revolving credit facility with Bank of America, N.A. (“BofA”), as agent for the lenders under the facility. The principal changes to the terms of the facility were to:

(i) increase the maximum amount of borrowings and letters of credit which the Company may obtain under the facility from $250.0 million to $400.0 million (with a $325.0 million sub-limit for letters of credit);

(ii) provide that of such $400.0 million maximum amount, $300.0 million (with a $250.0 million sub-limit for letters of credit) will be available for Clean Harbors, Inc. and its domestic subsidiaries and $100.0 million (with a $75.0 million sub-limit for letters of credit) will be available for the Company's Canadian subsidiaries;

(iii) reduce the interest rate on borrowings under the facility, in the case of LIBOR loans, from LIBOR plus an applicable margin ranging (depending primarily on the Company's fixed charge coverage ratio for the most recently completed four fiscal quarters) from 1.75% to 2.25% per annum to LIBOR plus an applicable margin ranging from 1.50% to 2.00% per annum, and, in the case of base rate loans, from BofA's base rate plus an applicable margin ranging from 0.75% to 1.25% per annum to BofA's base rate plus an applicable margin ranging from 0.50% to 1.00% per annum, and with such reduced applicable margin for LIBOR loans also to be the annual fee for outstanding letters of credit; and

(iv) extend the term of the facility so that it will expire on January 17, 2018.

At December 31, 2012 and 2011, the revolving credit facility had no outstanding loan balances, $117.4 million and $167.4 million, respectively, available to borrow and $132.6 million and $82.6 million, respectively, of letters of credit outstanding. That total of outstanding letters of credit at December 31, 2012 includes $46.0 million of back-up letters of credit obtained under the Company's revolving credit facility in connection with the Company's December 28, 2012 acquisition of Safety-Kleen.