1
                                                                      Exhibit 99

     STERICYCLE, INC. AGREES TO ACQUIRE MEDICAL WASTE ASSETS TO BE DIVESTED
                          FROM ALLIED/BFI TRANSACTION



LAKE FOREST, ILLINOIS and SCOTTSDALE, ARIZONA, April 15, 1999 -- Stericycle,
Inc. (Nasdaq: SRCL) and Allied Waste Industries, Inc. (NYSE: AW), today
announced the signing of a binding definitive agreement under which Stericycle
will purchase all of the medical waste operations which Allied intends to
acquire in Allied's previously announced $9.1 billion acquisition of Browning
Ferris Industries, Inc. (BFI). It is expected that the transaction will be
completed concurrent with or shortly following the closing of Allied Waste's
acquisition of BFI, and is contingent upon such acquisition.

Upon closing of the Allied/BFI transaction, Stericycle has agreed to acquire
from Allied all of BFI's medical waste operations in the United States, Puerto
Rico and Canada for a purchase price of $440 million in cash. Stericycle will
add over 200,000 customers to its base of 78,000. The company will also add 25
treatment facilities to its existing network of 12, and a complementary array
of transfer stations. This transaction, the largest in Stericycle's history, is
expected to yield operating efficiencies in Stericycle's existing geographic
service areas and will position Stericycle into new geographic service areas.
Annualized revenues from BFI's medical waste operations totaled approximately
$198 million for the fiscal year ended September 30, 1998. Stericycle's 1998
revenues for its year-ended December 31, 1998 totaled $67 million.

Based on the anticipated profit contribution of the acquired operations,
Stericycle expects the transaction to be immediately accretive to earnings.
Stericycle has engaged Donaldson, Lufkin, & Jenrette Securities Corporation to
assist the company in financing the transaction. The acquisition is subject to
customary closing conditions and regulatory reviews and is contingent upon the
completion of Allied's acquisition of BFI.

Mark Miller, President and CEO of Stericycle, said, "This transaction clearly
marks the most important milestone in Stericycle's history. By combining two
strong businesses, each with experienced management in the field, Stericycle
will have the best medical waste assets in the industry. This transaction
brings a new pool of talented people, customers and facilities to the
Stericycle family, creating a dynamic new force in the industry."

Tom Van Weelden, Chairman, President and CEO of Allied, commented, "The
proposed sale of BFI's medical waste operations is consistent with Allied's
intent to divest assets and operations which are not strategic to its core
solid waste business and to utilize the proceeds to reduce the company's debt
as a result of the BFI acquisition."

"Furthermore," Van Weelden said, "we believe that this transaction is the best
answer for the future growth of the existing BFI medical waste operations. Over
the past five years, the BFI team has built a strong medical waste business and
this transaction gives significant opportunity to the BFI medical waste
employees to expand both personally and professionally in their field."

Safe Harbor Statement: Statements in this press release, which are not strictly
historical, are "forward-looking." Forward-looking statements involve known and
unknown risks and should be viewed with caution. Factors set forth in the
company's Annual Report on Form 10-K could affect the company's actual results
and could cause the company's actual results to differ materially from the
expected results. The risks and uncertainties that may affect the results of
the company's business include the following: difficulties and delays with
respect to the completion and integration of acquisitions; delays and diversion
of attention related to compliance with permitting and regulatory authorities;
difficulties and delays with respect to marketing and sales activities; and
general uncertainties accompanying expansion into new markets. As relates to
the acquisition described in this press release, specific risks and
uncertainties include the risk that closing of the Allied/BFI transaction may
not occur as contemplated or at all, which could cause the sale to Stericycle
to be postponed or terminated, and whether and when the transaction will be
accretive to Stericycle. The company makes no commitment to disclose any
revisions to forward-looking statements, or any facts, events or circumstances
after the date hereof that may bear upon forward-looking statements.