TRB's Airport Cooperative Research Program (ACRP) has released a request for proposal to build on ACRP Legal Research Digest 3 and synthesize available guidance, including regulations, statutes, policies, and case decisions (administrative or court) pertaining to commercial ground transportation. Proposals are due June 26, 2018.

TRB's Airport Cooperative Research Program (ACRP) has released a request for proposals to evaluate the scope of permissible uses of airport revenue and property. Proposals are due July 9, 2018.