FAA Federal Aviation Regulations (FARS, 14 CFR)

The following matters may not be protested before the Office of Dispute Resolution for Acquisition:

(a) FAA purchases from or through, state, local, and tribal governments and public authorities;

(b) FAA purchases from or through other federal agencies;

(c) Grants;

(d) Cooperative agreements;

(e) Other transactions which do not fall into the category of procurement contracts subject to the AMS.