Allows the Indiana department of transportation (department) to assume the responsibilities and duties of the United States Department of Transportation with respect to certain federal environmental laws. Provides that the department waives its civil immunity and consents to the jurisdiction of the federal courts for responsibilities and duties assumed under certain federal environmental laws. Amends language regarding a local unit's eligibility for: (1) a grant from the local road and bridge matching grant fund (fund); and (2) a distribution from the fund based on the local unit's share of total lane mileage. Provides limitations for an overweight truck permit that is issued for a single trip. Provides for the use of the Indiana Plane Coordinate System as a means to describe real property. Provides that the department may give preference in awarding grants from the fund to local units that have adopted an enhanced asset management plan. Provides that a county may impose a vehicle excise tax or wheel tax on a vehicle that is registered in the county and not registered in a municipality in the county where a vehicle excise tax or wheel tax went into effect after December 31, 2026. Amends certain requirements for township capital improvement plans.