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                                                                    EXHIBIT 10.9

                               THIRD AMENDMENT TO

                  STERICYCLE, INC. DIRECTORS STOCK OPTION PLAN



         The Stericycle, Inc. Directors Stock Option Plan, as amended by First
and Second Amendments (as amended, the "Plan") is amended as follows pursuant to
the authority of the Board of Directors of Stericycle, Inc. under Paragraph 8.2
of the Plan:

       1. ARTICLE 2. The following definition is added to Article 2 of the Plan:

          PREFERRED STOCK means the Company's Series A Convertible Preferred
Stock, par value $.01 per share.

       2. ARTICLE 5. Article 5 of the Plan is amended to read as follows:

                                    ARTICLE 5

                                 ADMINISTRATION

           This Plan shall be administered by the Board. Subject to the express
       provisions of the Plan, the Board may interpret the Plan, adopt and
       revise policies and procedures to administer the Plan and make all
       determinations required for the Plan's administration. The actions of the
       Board shall be final and binding.

       3. ARTICLE 6. Article 6 of the Plan is amended to read as follows:

                                    ARTICLE 6

                                  STOCK OPTIONS

           6.1 OPTION GRANTS. The Company shall grant Options to Outside
       Directors at the times and in the amounts that the Board determines, in
       its discretion, taking the following guidelines into account as starting
       points:

                (a) on the date of the Annual Meeting each year, each incumbent
           Outside Director who is reelected as a Director at the Annual Meeting
           might receive an Option for the number of shares of Common Stock
           determined by multiplying 7,000 shares by a fraction, the numerator
           of which is $12.00 and the denominator of which is the Closing Price
           on the date of the Annual Meeting (or on the last trading day
           preceding the Annual Meeting if it is not a trading day), subject to
           a minimum grant of 4,500 shares and a maximum grant of 9,500 shares;

                (b) on the date of the Annual Meeting each year, each new
           Outside Director who is elected as a Director at the Annual Meeting
           might receive an Option for the number of shares of Common Stock
           determined by multiplying 21,000 shares by a fraction, the numerator
           of which is $12.00 and the denominator of which is the Closing Price
           on the date of the Annual Meeting (or on the last trading day
           preceding the Annual Meeting if it is not a trading day), subject to
           a minimum grant of 13,500 shares and a maximum grant of 28,500
           shares; and

                (c) on the date of election of each new Outside Director who is
           elected as a Director other than at an Annual Meeting, the new
           Outside Director might receive an Option for the number


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          of shares equal to three times the number of shares for which each
          incumbent Outside Director was granted an Option on the date of the
          Annual Meeting preceding the election of the new Outside Director.

           These guidelines do not require Options to be granted at the
       particular times described or, if granted, to be granted for the number
       of shares of Common Stock specified. The Board, in its discretion, may
       grant Options at different times and may grant Options for more or fewer
       shares.

           The exercise price per share of each Option granted to an Outside
       Director shall be the Closing Price on the Grant Date (or the last
       trading day preceding the Grant Date if it is not trading day).

           6.2 TERM. Each Option granted prior to January 1, 2000 shall have a
       six-year term expiring on the sixth anniversary of the date that it was
       granted (its "Expiration Date"), and each Option granted after December
       31, 1999 shall have a 10-year term expiring on the tenth anniversary of
       the date that it was granted (its "Expiration Date"), subject to early
       expiration as provided in Paragraph 6.3. An Option may be exercised in
       whole or in part at any time prior to its Expiration Date to the extent
       that it is vested. Each Option granted prior to April 1, 1998 shall
       become vested in 16 consecutive equal quarterly installments beginning on
       the first day of the first January, April, July or October following the
       date on which it was granted; and each Option granted after March 31,
       1998 shall become vested in 12 consecutive equal monthly installments,
       beginning on the first day of the first month following the month in
       which it was granted, or in accordance with any other vesting schedule
       approved by the Board (either generally or in the particular instance).
       An Option shall not continue to vest if the holder of the Option for any
       reason ceases to serve as an Outside Director. Each outstanding Option
       held by an incumbent Outside Director shall become fully vested upon a
       Change in Control. In addition, the Board, in its discretion, at any time
       may accelerate the vesting of all outstanding Options held by incumbent
       Outside Directors under any related or other circumstances.

           6.3 EARLY EXPIRATION. If the holder of an Option ceases to serve as
       an Outside Director, the unvested portion of the Option shall expire on
       the date that he or she ceases to serve as an outside director. The
       vested portion of the Option shall expire or remain exercisable as
       follows:

                (a) If the holder ceases to serve as an Outside Director by
           reason of his or her death or disability, the vested portion shall
           remain exercisable for the term of the Option and expire on the
           Expiration Date.

                (b) If the holder ceases to serve as an Outside Director for any
           reason other than his or her death or disability or removal from
           office, the vested portion shall remain exercisable for the term of
           the Option and expire on the Expiration Date unless the Board, taking
           into account the circumstances in which the holder ceases to serve as
           an Outside Director, considers an earlier expiration date appropriate
           (but in no event shall the expiration date be earlier than 30 days
           after the date that the holder ceases to serve as an Outside
           Director).

                (c) If the holder ceases to serve as an Outside Director by
           reason of his or her removal from office, the vested portion shall
           remain exercisable for 30 days after the date that the holder ceases
           to serve as an Outside Director.

           6.4 TRANSFERABILITY. An Option may be transferred by the Outside
       Director to whom it was granted subject to the following conditions and
       limitations:

                (a) The Option may be transferred only to one or more of the
           following persons or entities ("Permissible Transferees"):


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                    (1) a member of the Outside Director's immediate family
                (consisting of his or her spouse, children and grandchildren);

                    (2) a trust for the primary benefit of the Outside Director
                or any one or more members of his or her immediate family;

                    (3) a corporation, partnership or other entity which,
                together with its affiliates, owns at the time of transfer at
                least 2.0% of the issued and outstanding shares of Common Stock
                or at least 10.0% of the issued and outstanding shares of
                Preferred Stock and with which the Outside Director has a
                contractual obligation to pay over or assign his or her
                "outside" remuneration directly or indirectly received by reason
                of his or her employment by or affiliation with such
                corporation, partnership or other entity.

                (b) A Permissible Transferee to whom an Option is transferred
           shall be subject to all of the terms and conditions of the Plan and
           of the Option Agreement evidencing the Option. The Permissible
           Transferee may not transfer, assign or pledge the Option, however,
           except, solely if the Permissible Transferee is a natural person, by
           will or applicable intestacy laws. Section 6.3, dealing with the
           early expiration of Options, shall continue in effect in respect of
           the Permissible Transferee as if the Outside Director who transferred
           the Option had not done so, i.e., references in Section 6.3 to the
           "holder of an Option" or "holder" shall be construed as referring to
           the Outside Director who transferred the Option and not to the
           Permissible Transferee. The Company shall not be under any duty to
           notify the Permissible Transferee that the Outside Director who
           transferred the Option has ceased to serve as an Outside Director.

                (c) No transfer of an Option by an Outside Director to a
           Permissible Transferee shall relieve the Outside Director of his or
           her withholding obligations under Section 7.3.

       Except for transfers to Permissible Transferees, an Outside Director may
       not transfer, assign or pledge an Option (whether by operation of law or
       otherwise) except as provided by will or applicable intestacy laws; and
       no Option shall be subject to execution, attachment or similar process.
       An Option may be exercised only by the Outside Director to whom it was
       granted (or by the Permissible Transferee to whom the Outside Director
       transferred the Option), except in the case of the death of the Outside
       Director (or the death of the Permissible Transferee), when it may be
       exercised by the person or persons to whom it passes by will or
       applicable intestacy laws.

           6.5 OPTION AGREEMENTS. Each Option shall be evidenced by a written
       agreement (an "Option Agreement") entered into by the Company and the
       Outside Director to whom the Option is granted, which shall be
       substantially in the form of the option agreement attached as EXHIBIT A
       or otherwise in a form approved by the Board.

       4. EFFECTIVE DATE. This Amendment shall become effective as of the date
of its approval by the Board of Directors of Stericycle, Inc.



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