A more thorough explanation:

The Interstate Commerce Commission (ICC) was a federal agency established in 1887 to regulate surface transportation between states. Its main responsibilities were to certify carriers and pipelines and to monitor quality and pricing. However, in December 1995, Congress eliminated the agency, and most of its duties were assumed by the Surface Transportation Board (STB), a division of the Department of Transportation.

For example, the ICC would have been responsible for ensuring that a trucking company transporting goods from New York to California was following safety regulations and charging fair prices. The STB now handles these types of issues.

The Interstate Compact on the Placement of Children (ICPC) is an agreement between states to ensure that when children are placed or adopted across state lines, the states cooperate with each other to facilitate the process and protect the children. The compact helps secure states' cooperation in investigating the suitability of proposed adoptive homes in an interstate adoption and alleviates conflicts that often occur when multiple states are involved.

For example, if a child is being adopted from Texas by a family in California, the ICPC would ensure that both states work together to ensure the child's safety and well-being. The compact has been enacted in almost identical form in all 50 states, as well as in the District of Columbia and the Virgin Islands.