40 CFR § 35.141 - Definitions.

---
identifier: "/us/cfr/t40/s35.141"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 35.141 - Definitions."
title_number: 40
title_name: "Protection of Environment"
section_number: "35.141"
section_name: "Definitions."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "B"
subchapter_name: "GRANTS AND OTHER FEDERAL ASSISTANCE"
part_number: "35"
part_name: "STATE AND LOCAL ASSISTANCE"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401  33 U.S.C. 1251  42 U.S.C. 300f  42 U.S.C. 6901  7 U.S.C. 136  15 U.S.C. 2601  42 U.S.C. 13101  Pub. L. 104-134, 110 Stat. 1321, 1321-299 (1996); Pub. L. 105-65, 111 Stat. 1344, 1373 (1997), 2 CFR 200."
cfr_part: "35"
---


# 35.141 Definitions.

In addition to the definitions in § 35.102, the following definitions apply to the Clean Air Act's section 105 grant program:

*Implementing* means any activity related to planning, developing, establishing, carrying-out, improving, or maintaining programs for the prevention and control of air pollution or implementation of national primary and secondary ambient air quality standards.

*Nonrecurrent* expenditures are those expenditures which are shown by the recipient to be of a nonrepetitive, unusual, or singular nature that would not reasonably be expected to recur in the foreseeable future. Costs categorized as nonrecurrent must be approved in the grant agreement or an amendment thereto.

*Recurrent expenditures* are those expenses associated with the activities of a continuing environmental program. All expenditures are considered recurrent unless justified by the applicant as nonrecurrent and approved as such in the grant award or an amendment thereto.