The ICLTA is represented by members of local cities and the County of Imperial. The adoption of Measure D places Imperial County as a whole further ahead for allocation of state dollars for transportation improvements, as these funds can be used alone or as a match for other State and federal transportation funds.

Within the allocation of funding; 92% of the funds collected go to the cities and County of Imperial to pay for critical road repair projects, 5% is targeted for regional highway projects, 2% for transit projects and 1% for administration. These funds make the many of the road repairs possible for local cities and the County. Since its inception in 1989 through 2006, Measure D has provided for over $105 million dollars for transportation improvements.

Measure D requires a board authority for governance, and a Local Taxpayers Supervisory Oversight Committee which has been established to oversee the use of funds.

The region of Imperial County is one of twenty-five counties delivering voter approved transportation sales tax measure within California This has earned Imperial County the status of a Self Help County, one of twenty-five out of a total of fifty-eight in California that have achieved this status.

In April 2012 the ICLTA issued bonds in the amount of $54 million on behalf of the following member agencies: County of Imperial and Cities of Brawley, Calexico, Calipatria and Imperial.

In October 2018 the ICLTA issued bonds in the amount of $16.7 million on behalf of the following member agencies: Cities of Calexico, Calipatria and Holtville.