Western Governors' Association, 600 17th Street, Suite 1705 South Tower, Denver, CO 80202

R -- MOBILE SOURCE EMISSIONS INVENTORY SOL 99WGA101WRAP DUE 092299 POC Richard Halvey, (303) 623-9378 WEB: Western Governors' Association, http://www.westgov.org. E-MAIL: Western Governors' Association, rhalvey@westgov.org. Development of a Mobile Source Emissions Inventory is crucial to understanding and then identifying methods to improve visibility in the Grand Canyon regions. The objective of this project is to: 1) develop a 1999 baseline inventory, 2) "grow" the inventory to 2040 and express this inventory in 5 year intervals [If possible, the contractor is to grow the process to 2060 in line with the expected guidance in EPA's upcoming Regional Haze Rule], and 3) show the uncertainties associated with the out-year projections. It is expected that the contractor will coordinate closely with the Emissions Forum, the Emissions Inventory Work Group, and the various Task Forces of the Mobile Source Forum. Bid packages are available from the WGA. Proposals are due September 22, 1999. Posted 08/17/99 (D-SN368725). (0229)

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