covered motor vehicle safety penalty collectionsmeans any amount collected in connection with a civil penalty under section 30165 of title 49, United States Code, reduced by any award authorized by the Secretary of Transportation to be paid to any person in connection with information provided by such person related to a violation of chapter 301 of such title which is a predicate to such civil penalty.
Highway Accountmeans the portion of the Highway Trust Fund which is not the Mass Transit Account.
mass transit portionmeans, for any fuel with respect to which tax was imposed under section 4041 or 4081 and otherwise deposited into the Highway Trust Fund, the amount determined at the rate of—
motorboat fuel taxesmeans the taxes under section 4041(a)(2) with respect to special motor fuels used as fuel in motorboats and under section 4081 with respect to gasoline used as fuel in motorboats, but only to the extent such taxes are deposited into the Highway Trust Fund.
net highway receiptsmeans, with respect to any period, the excess of—
net revenuesmeans the amount estimated by the Secretary of the Treasury based on the excess of—
small-engine fuel taxesmeans the taxes under section 4081 with respect to gasoline used as a fuel in the nonbusiness use of small-engine outdoor power equipment, but only to the extent such taxes are deposited into the Highway Trust Fund.
unfunded highway authorizationsmeans, at any time, the excess (if any) of—