ADMINISTRATIVE EXPENSES.

SEC. 4. ADMINISTRATIVE EXPENSES. (a) Authorization of Contract Authority.—There shall be available from the Highway Trust Fund (other than the Mass Transit Account) for administrative expenses of the Federal-aid highway program $343,628,000 for fiscal year 2004. (b) Contract Authority.—Funds made available by this section shall be available for obligation in the same manner as if such funds were apportioned under chapter 1 of title 23, United States Code, and shall be subject to a limitation on obligations for Federal-aid highways and highway safety construction programs; except that such funds shall remain available until expended.