(a) Executive agencies receiving motor vehicle services from fleet management systems may request discontinuance or curtailment of their participation after 1 year of participation, unless a different time period has been mutually agreed to, or if the need for these services ceases. Requests shall be submitted to the Administrator, GSA, with factual justification.

(b) If the Administrator, GSA, does not agree with these requests and is unable to make arrangements which are mutually acceptable to GSA and the agency concerned, the agency's request for discontinuance or modification and the explanation of the Administrator, GSA, denying the request will be forwarded to the Director, OMB, who will make the final and binding decision.