Stericycle Announces Inclusion in NASDAQ-100 Index(R)

LAKE FOREST, Ill.--(Business Wire)--Stericycle, Inc. (NASDAQ: SRCL) today announced that effective
December 24, 2007 it has been selected by NASDAQ(R) for inclusion in
its NASDAQ-100 Index(R). This index consists of 100 of the largest
domestic and international non-financial securities listed on The
Nasdaq Stock Market(R) based on market capitalization.

"We are very pleased to receive this recognition of our growth
from NASDAQ(R)," said Mark Miller, Stericycle CEO, "as it represents a
major milestone in our company's commitment to helping our customers
protect their employees and reduce risk."

Only two companies, Dell (NASDAQ: DELL) and Starbucks (NASDAQ:
SBUX), in the current NASDAQ-100(R) had positive year over year market
value growth from IPO to 11 years post IPO. SRCL will be the third
company in the NASDAQ-100(R) to achieve 11 years of sustained growth
since going public in 1996.

NASDAQ(R), NASDAQ-100 Index(R) and The NASDAQ Stock Market(R) are
registered trademarks of The Nasdaq Stock Market, Inc.

Safe Harbor Statement: Statements in this press release may
contain forward-looking statements that involve risks and
uncertainties, some of which are beyond our control (for example,
general economic conditions). Our actual results could differ
significantly from the results described in the forward-looking
statements. Factors that could cause such differences include
difficulties in completing the integration of acquired businesses,
changes in governmental regulation of medical waste collection and
treatment, and increases in transportation and other operating costs,
as well as the various other factors described in our filings with the
U.S. Securities and Exchange Commission. As a result, past financial
performance should not be considered a reliable indicator of future
performance, and investors should not use historical trends to
anticipate future results or trends. We make no commitment to disclose
any subsequent revisions to forward-looking statements.

Stericycle, Inc.
Frank ten Brink, 847-607-2012

Copyright Business Wire 2007