UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of The
Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) March 28, 2007

Waste Services, Inc.

(Exact name of registrant as specified in its charter)

Delaware	000-25955	01-0780204
(State or other jurisdiction of	(Commission	(IRS Employer
incorporation)	File Number)	Identification No.)

1122 International Blvd., Suite 601, Burlington, Ontario, Canada L7L 6Z8
(Address of principal executive offices)     (Zip Code)

Registrant’s telephone number, including area code (905) 319-1237

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligations of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Section 7 — Regulation FD

Item 7.01 Regulation FD Disclosure.

Waste Services, Inc. is making a presentation on March 28, 2007 at the Lehman Brothers 2007 High Yield Bond and Syndicated Loan Conference, in Scottsdale, AZ. The presentation slides are attached as an exhibit to this Form 8-K and are also available on the company’s website at http://www.wasteservicesinc.com.

Section 9 — Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

99.1 March 28, 2007 Presentation.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

WASTE SERVICES, INC.
	By: /s/ Ivan R. Cairns
Ivan R. Cairns
Executive Vice President and General Counsel
Date: March 28, 2007