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                            SCHEDULE 14A INFORMATION
          PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES
                              EXCHANGE ACT OF 1934
                             (AMENDMENT NO.      )
 
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                               SAFETY-KLEEN CORP.
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                (Name of Registrant as Specified in Its Charter)
 
                      LAIDLAW ENVIRONMENTAL SERVICES, INC.
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    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)
 
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             Laidlaw Environmental Obtains Approval For Share Issue


COLUMBIA, S.C., Feb. 19 /PRNewswire/ -- Laidlaw Environmental Services, Inc.
(NYSE: LLE) today announced the approval by its shareholders of the
authorization of an additional 400 million common shares and the issuance of
shares pursuant to its exchange offer for all the common shares of Safety- Kleen
Corp. (NYSE: SK).

Commenting on today's approval, Kenneth W. Winger, Laidlaw Environmental's
president and chief executive officer, said:

"The only remaining obstacles to the realization by Safety-Kleen shareholders of
the superior value of Laidlaw Environmental's $30.00 exchange offer rest with
Safety-Kleen's Board of Directors. Shareholders of Laidlaw Environmental today
expressed their desire to participate in the creation of value for all
continuing shareholders that will result from the acceptance of our offer to
Safety-Kleen shareholders. The majority of Safety-Kleen shareholders expressed a
similar desire last week. While Safety-Kleen's Board continues to bar access to
the benefits of the superior value of our offer, we remain committed, in spite
of the Board imposed obstacles, to deliver to Safety-Kleen shareholders the
highest and best value for their shares.

"Mr. Donald Brinckman, in Safety-Kleen's press release of February 16th, stated
that he is "not surprised by" the extension of our offer. Mr. Brinckman and his
Board may not be surprised but we continue to be astounded by their ongoing
refusal to allow their shareholders to obtain the highest and best value for
their shares. Their refusal is especially puzzling to us, given the clear
demonstration of support for our offer by the majority of Safety-Kleen
shareholders last Friday, the determination of the superiority of our offer by
the leading independent proxy advisory firm -- Institutional Shareholder
Services and by Safety-Kleen's own financial advisor -- William Blair & Co.

"We urge all Safety-Kleen shareholders to vote against the Philip group merger
proposal on February 25th so that Mr. Brinckman and the Safety-Kleen Board will
finally have to clear the road blocks to value they have put in front of their
own shareholders."

Laidlaw Environmental Services is the leading provider of hazardous and
industrial waste management services to industry and government. The company
operates from more than 100 locations throughout North America.

SOURCE Laidlaw Environmental Services, Inc.

CONTACT: Kenneth W. Winger, President and Chief Executive Officer, or Paul R.
Humphreys, Senior Vice President, Finance and Chief Financial Officer, Laidlaw
Environmental Services, Inc., 803-933-4210