Since 1986, the Arizona Department of Transportation has used a comprehensive regression-based econometric model to estimate Transportation Excise Tax revenues for Maricopa County. These revenues, which flow into the Regional Area Road Fund (RARF), are the major funding source for the Maricopa County Freeway Program. This document contains the official forecast of expected values for the Maricopa County Transportation Excise Tax as developed by the Arizona Department of Transportation in cooperation with the Maricopa Association of Governments, Valley Metro and Valley Metro Rail.

The State of Arizona taxes motor fuels and collects a variety of fees relating to the registration and operation of motor vehicles in the state. These collections include gasoline and use fuel taxes, motor carrier fees, vehicle license taxes, motor vehicle registration fees, and other miscellaneous fees. These revenues are deposited in the Arizona Highway User Revenue Fund and are then distributed to the cities, towns and counties of the State and to the State Highway Fund, which is administered by the Department. These taxes and fees represent a source of revenues available to the state for highway related expenses.

The State of Arizona taxes motor fuels and collects fees relating to the registration and operation of motor vehicles. These taxes and fees include gasoline and use fuel taxes, motor carrier fees, motor vehicle registration fees, vehicle license taxes, and other miscellaneous fees. Revenues are deposited in the Arizona Highway User Revenue Fund and are then distributed to the cities, towns and counties and to the State Highway Fund. These taxes and fees are a major source of revenue to the state for highway construction, improvements, and other related expenditures.

The Arizona Department of Transportation, the Arizona Game & Fish Department and the Arizona State Parks Board are required to conduct a study every three years on watercraft fuel consumption and recreational watercraft usage. The fuel consumption data is collected to determine the allocation of motor vehicle fuel tax to the State Lake Improvement Fund. The information on recreational watercraft usage patterns on Arizona’s lakes and rivers is necessary, in part, to determine the distribution of SLIF funds to applicants.