TRB's Airport Cooperative Research Program (ACRP) has released a request for proposals to Update of Compilation of FAA/DOT Airport Legal Determinations, which was published originally as ACRP Legal Research Digest 21. This study was initially announced in June 2017 and has been changed to clarify that the update for the first year should be through 2017, and then annually for 3 years. This solicitation is open to all proposers, including agencies that responded to the earlier RFP. Proposals are due November 16, 2017.

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 December 7, 2017.