LASALLE NATIONAL LEASING CORPORATION
EQUIPMENT LEASE GUARANTY
This Equipment Lease Guaranty is executed and delivered in favor of LASALLE NATIONAL LEASING
CORPORATION, its successors and assigns ("Lessor"), in connection with that certain Master Lease
Agreement dated as of June 18, 1999, together with all Equipment Schedules executed or to be executed
pursuant hereto (the "Lease"), by and between Lessor and 3C1 Complete Compliance Corporation, its
successors and assigns ("Lessee").
In order to induce Lessor to enter into the Lease (execution and delivery hereof being a condition precedent to
Lessor's obligations under the Lease), and for other good and valuable consideration, the receipt and sufficiency
of which are hereby acknowledged, STERICYCLE, INC. ("Guarantor") hereby UNCONDITIONALLY
GUARANTEES (a) to pay Lessor in lawful money of the United States all rents and other sums reserved in the
Lease, or any substitutions therefor, in the amounts, at the times and in the manner set forth in the Lease; and (b)
to perform, at the time and in the manner set forth in the Lease, all of the terms, covenants and conditions therein
required to be kept, observed or performed by Lessee (collectively, the "Obligations").
1. This Guaranty is a continuing one and shall terminate only upon full payment of all rents and all other sums due
under the Lease and the performance of all of the terms, covenants and conditions therein required to be kept,
observed or performed by Lessee, including such payment and performance under all schedules made a part of
said Lease, whether to be performed before or after the last rent payment has been made under the Lease. This
Guaranty is a guaranty of prompt payment and performance (and not merely a guaranty of collection).
2. Guarantor authorizes Lessor, with Lessee's consent where required, without notice or demand, and without
affecting its liability hereunder, from time to time to: (a) receive and hold security for the payment of this Guaranty