23 C.F.R. § 771.107
The definitions contained in the CEQ regulations and in titles 23 and 49 of the United States Code are applicable. In addition, the following definitions apply to this part.
Action. A highway, transit, or railroad project proposed for U.S. DOT funding. It also can include activities such as joint and multiple use permits, changes in access control, or rulemakings, which may or may not involve a commitment of Federal funds.
Administration. The FHWA, FRA, or FTA, whichever is the designated Federal lead agency for the proposed action. A reference herein to the Administration means the FHWA, FRA, or FTA, or a State when the State is functioning as the FHWA, FRA, or FTA in carrying out responsibilities delegated or assigned to the State in accordance with 23 U.S.C. 325 , 326 , or 327 , or other applicable law. A reference herein to the FHWA, FRA, or FTA means the State when the State is functioning as the FHWA, FRA, or FTA respectively in carrying out responsibilities delegated or assigned to the State in accordance with 23 U.S.C. 325 , 326 , or 327 , or other applicable law. Nothing in this definition alters the scope of any delegation or assignment made by FHWA, FRA, or FTA.
Administration action. FHWA, FRA, or FTA approval of the applicant's request for Federal funds for construction. It also can include approval of activities, such as joint and multiple use permits, changes in access control, rulemakings, etc., that may or may not involve a commitment of Federal funds.
Applicant. Any Federal, State, local, or federally recognized Indian Tribal governmental unit that requests funding approval or other action by the Administration and that the Administration works with to conduct environmental studies and prepare environmental review documents. When another Federal agency, or the Administration itself, is implementing the action, then the lead agencies (as defined in this section) may assume the responsibilities of the applicant in this part. If there is no applicant, then the Federal lead agency will assume the responsibilities of the applicant in this part.
Environmental studies. The investigations of potential environmental impacts to determine the environmental process to be followed and to assist in the preparation of the environmental document.
Lead agencies. The Administration and any other agency designated to serve as a joint lead agency with the Administration under 23 U.S.C. 139(c)(3) or under the CEQ regulations.
Participating agency. A Federal, State, local, or federally recognized Indian Tribal governmental unit that may have an interest in the proposed project and has accepted an invitation to be a participating agency or, in the case of a Federal agency, has not declined the invitation in accordance with 23 U.S.C. 139(d)(3) .
Programmatic approaches. An approach that reduces the need for project-by-project reviews, eliminates repetitive discussion of the same issue, or focuses on the actual issues ripe for analyses at each level of review, consistent with NEPA and other applicable law.
Project sponsor. The Federal, State, local, or federally recognized Indian Tribal governmental unit, or other entity, including any private or public-private entity that seeks Federal funding or an Administration action for a project. Where it is not the applicant, the project sponsor may conduct some of the activities on the applicant's behalf.
Section 4(f). Refers to 49 U.S.C. 303 and 23 U.S.C. 138 (as implemented by 23 CFR part 774 ).
23 C.F.R. §771.107