54 U.S.C. § 300320: Undertaking

In this division, the term “undertaking” means a project, activity, or program funded in whole or in part under the direct or indirect jurisdiction of a Federal agency, including—(1) those carried out by or on behalf of the Federal agency; (2) those carried out with Federal financial assistance; (3) those requiring a Federal permit, license, or approval; and (4) those subject to State or local regulation administered pursuant to a delegation or approval by a Federal agency.