Exhibit 10
    (iii) 30.





AMENDMENT NUMBER
   NINE


IT CORPORATION
   RETIREMENT PLAN


1993
   RESTATEMENT





| | The IT Corporation
     Retirement Plan is hereby amended, effective November 1, 1999, as
     follows:
| | -------------------------------------------------------------------------------------------------------




| | 1. Section 2.22(b)
     shall be amended in its entirety to read as follows:
| | ----------------------------------------------------------------------------




| | (b) In the case of any employee other than
     an Employee described in (a) above, such Employee shall not, for purposes
     of determining his Employment Commencement Date, be deemed to have
     commenced employment with the Company prior to the date on which such
     entity became affiliated with the Company; except that in the case of
     business entities that became Affiliated Companies or divisions or
     operating units of the Company (whether through stock or assets
     transactions), the Company may, in its sole discretion, establish a prior
     date as of which such entity is deemed to have become an Affiliated
     Company or division or operating unit of the Company or an Affiliated
     Company for purposes of establishing the Employment Commencement Dates of
     employees of such entity. In addition, in the case of Employees who join
     the Company following service with an unrelated entity performing services
     at a site pursuant to a contract (Contract Site Employees),
     and the provisions of which services has been assumed by the Company, the
     Committee may, in its discretion, establish a date prior to actual
     employment with the Company as such Employees Employment
     Commencement Date; provided that if there are more than 700 Contract Site
     Employees at such site who are otherwise eligible to participate in the
     Plan (without regard to their actual service), the Committees action
     to modify the Employment Commencement Date must be ratified by the Board
     of Directors. In establishing any such deemed Employment
| | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | Commencement
     Dates, the Company may prescribe and apply such rules as it deems
     necessary or appropriate in a non-discriminatory manner (whether such
     rules are applied by the Company to all or only a portion of such
     employees).
| | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------




| | 2. Section 2.26(d)
     shall be amended in its entirety to read as follows:
| | ----------------------------------------------------------------------------




| | (d) Hours of Service of an Employee of a
     business entity newly affiliated with the Company credited for the period
     (if any) commencing upon that individuals deemed Employment
     Commencement Date determined in accordance with Section 2.22 and ending
     upon the actual date the individual becomes an Employee shall be
     determined in accordance with the provisions of this Section 2.26, applied
     with reference to the newly affiliated entity rather than the Company, and
     in the case of a Participating Company, in accordance with the applicable
     joinder schedule appended to this Plan. In addition, Hours of Service of
     any Contract Site Employee, as defined in Section 2.22(b) hereof, credited
     for the period (if any) commencing upon that individuals deemed
     Employment Commencement Date determined in accordance with Section 2.22
     and ending upon the actual date the individual becomes an Employee shall
     be determined in accordance with the provisions of this Section 2.26
     applied with reference to the entity employing such individual rather than
     the Company.
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| | IN WITNESS WHEREOF,
     this instrument of amendment is executed this     
          day of        
          , 2000.
| | ----------------------------------------------------------------------------------------------------------------------




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