Wis. Admin. Code Trans § Trans 152.03
Under the authority of s. 341.45(4), Stats., Wisconsin became a member of the international fuel tax agreement. The IFTA is an agreement among states and provinces to simplify the reporting of fuel use taxes by interstate motor carriers. The IFTA reduces the paperwork and compliance burdens for fuel tax reporting. The IFTA does not impose taxes but allows interstate motor carriers to report their fuel use taxes to a base state on a uniform basis. The provisions of the international fuel tax agreement in effect on January 1, 1997 and those subsequently ratified by this state are incorporated by reference. If any provisions of this subchapter are inconsistent with the provisions in the international fuel tax agreement, the provisions of the international fuel tax agreement apply for applicants licensed under the international fuel tax agreement and these provisions apply to persons not licensed under the international fuel tax agreement.
Wis. Admin. Code Department of Transportation Trans 152.03
Wisconsin became a member of the international fuel tax agreement effective July 1, 1989. A copy of the agreement may be ordered from the Wisconsin Department of Transportation, Motor Carrier Taxes and Permits Section, P.O. Box 7979, Madison, Wisconsin 53707-7979.