PROSPECTUS SUPPLEMENT NO. 3                     Filed Pursuant to Rule 424(b)(3)
To Prospectus Dated May 7, 2004                      Registration No. 333-115061

                     PERMA-FIX ENVIRONMENTAL SERVICES, INC.

         This Prospectus Supplement No. 3 supplements the information contained
in that certain Prospectus, dated May 7, 2004, of Perma-Fix Environmental
Services, Inc. (the "Company"), relating to the offer and sale from time to time
of up to 6,391,651 shares of the Company's common stock by the individuals and
entities named on page 13 in the Prospectus under the section entitled "SELLING
STOCKHOLDERS." This Prospectus Supplement No. 3 is not complete without, and may
not be delivered or utilized except in connection with, the Prospectus, dated
May 7, 2004, as amended by the Prospectus Supplement No. 1, dated October 27,
2005, and the Prospectus Supplement No. 2, dated December 21, 2005
(collectively, the "Prospectus"), and any other amendments or supplements
thereto.

         Omicron Master Trust ("Omicron") is listed in the Selling Stockholders
table on page 13 of the Prospectus as beneficially owning a total of 300,000
shares of common stock, comprised of 222,222 shares held directly and 77,778
shares to be issued upon exercise of a warrant (the "Omicron Warrant"). Under
the terms of the Omicron Warrant, on or about April 1, 2006, Omicron assigned a
portion of the Omicron Warrant to Rockmore Investment Master Fund Ltd.
("Rockmore"). Pursuant to the assignment, the Company has canceled the original
warrant for 77,778 shares of common stock and issued two replacement warrants,
the first for 24,637 shares issuable to Rockmore and the second for 53,141
shares issuable to Omicron.

         The Selling Stockholders table beginning on page 13 of the Prospectus
is hereby amended by (a) reducing the shares listed beneficially owned by
Omicron, (b) revising footnote 13 to reflect Omicron's beneficial ownership of
275,363 shares, (c) inserting Rockmore as a Selling Stockholder and (d) adding
footnote 20 to disclose Rockmore's beneficial ownership of 24,637 shares
issuable upon exercise of a warrant. The number of shares of common stock
covered by the Prospectus remains unchanged. Except with respect to each Selling
Stockholders listed below, the Selling Stockholders table beginning on page 13
of the Prospectus remains unchanged.



                                                   SHARES OWNED        SHARES BEING      SHARES OWNED
                                                  BEFORE OFFERING        OFFERED        AFTER OFFERING
                                               ---------------------   ------------   -------------------
SELLING STOCKHOLDER                             NUMBER       PERCENT      NUMBER       NUMBER     PERCENT
--------------------------------------------   --------     --------   ------------   --------   --------
                                                                                        
Omicron Master Trust                            275,363(13)        *        275,363         --         --
Rockmore Investment Master Fund Ltd.             24,637(20)        *         24,637         --         --


(13)   Includes 222,222 shares, and 53,141 shares issuable upon the exercise of
       warrants, issued in connection with the private placement discussed under
       "Recent Developments - Private Placement." Prior to the date of this
       Prospectus Supplement No. 3 Omicron sold the 222,222 shares included in
       the Prospectus, and currently beneficially owns only the 53,141 shares
       issuable upon exercise of warrants. We have been advised by Omicron
       Master Trust as follows: Omicron Capital, L.P., a Delaware limited
       partnership ("Omicron Capital"), serves as investment manager to Omicron
       Master Trust, a trust formed under the laws of Bermuda ("Omicron"),
       Omicron Capital, Inc., a Delaware corporation ("OCI"), serves as general
       partner of Omicron Capital, and Winchester Global Trust Company Limited
       ("Winchester") serves as the trustee of Omicron. By reason of such
       relationships, Omicron Capital and OCI may be deemed to share dispositive
       power over the shares of our common stock owned by Omicron, and
       Winchester may be deemed to share voting and dispositive power over the
       shares of our common stock owner by Omicron. Omicron Capital, OCI and
       Winchester disclaim beneficial ownership of such shares of our common
       stock. Omicron Capital has delegated authority from the board of
       directors of Winchester regarding the portfolio management decisions with
       respect to the shares of common stock owned by Omicron and, as of April
       21, 2003, Mr. Olivier H. Morali and Mr. Bruce T. Bernstein, officers of
       OCI, have delegated authority from the board of directors of OCI
       regarding the portfolio management decisions of Omicron Capital with
       respect to the shares of common stock owned by Omicron. By reason of such
       delegated authority, Messrs. Morali and Bernstein disclaim beneficial
       ownership of such shares of our common stock and neither of such persons
       has any legal right to maintain such delegated authority. No other person
       has sole or shared voting or dispositive power with respect to the shares
       of our common stock being offered by Omicron, as those terms are used for
       purposes under Regulation 13D of the Securities Exchange Act of 1934, as
       amended (the "Exchange Act"). Omicron and Winchester are not "affiliates"
       of one another, as that term is used for purposes of the Exchange Act or
       of any other person named in this prospectus as a selling stockholder. No
       person or "group" (as that term is used in Section 13(d) of the Exchange
       Act or the SEC's Regulation 13D) controls Omicron and Winchester.



(20)   Includes 24,637 shares issuable upon the exercise of warrants that were
       issued in connection with the private placement discussed under "Recent
       Developments - Private Placement." The following beneficial ownership
       information was provided to us by Rockmore Investment Master Fund Ltd.
       Rockmore Capital, LLC ("Rockmore Capital") and Rockmore Partners, LLC
       ("Rockmore Partners"), each a limited liability company formed under the
       laws of the State of Delaware, serve as the investment manager and
       general partner, respectively, to Rockmore Investments (US) LP, a
       Delaware limited partnership, which invests all of its assets through
       Rockmore Investment Master Fund Ltd., an exempted company formed under
       the laws of Bermuda ("Rockmore Master Fund"). By reason of such
       relationships, Rockmore Capital and Rockmore Partners may be deemed to
       share dispositive power over the shares of our common stock owned by
       Rockmore Master Fund. Rockmore Capital and Rockmore Partners disclaim
       beneficial ownership of such shares of our common stock. Rockmore
       Partners has delegated authority to Rockmore Capital regarding the
       portfolio management decisions with respect to the shares of common stock
       owned by Rockmore Master Fund and, as of August 15, 2006, Mr. Bruce T.
       Bernstein and Mr. Brian Daly, as officers of Rockmore Capital, are
       responsible for the portfolio management decisions of the shares of
       common stock owned by Rockmore Master Fund. By reason of such authority,
       Messrs. Bernstein and Daly may be deemed to share dispositive power over
       the shares of our common stock owned by Rockmore Master Fund. Messrs.
       Bernstein and Daly disclaim beneficial ownership of such shares of our
       common stock and neither of such persons has any legal right to maintain
       such authority. No other person has sole or shared voting or dispositive
       power with respect to the shares of our common stock as those terms are
       used for purposes under Regulation 13D-G of the Securities Exchange Act
       of 1934, as amended. No person or "group" (as that term is used in
       Section 13(d) of the Securities Exchange Act of 1934, as amended, or the
       SEC's Regulation 13D-G) controls Rockmore Master Fund.

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      The date of this Prospectus Supplement No.3 is as of August 30, 2006

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