40 CFR § 63.1945 - When do I have to comply with this subpart?
---
identifier: "/us/cfr/t40/s63.1945"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 63.1945 - When do I have to comply with this subpart?"
title_number: 40
title_name: "Protection of Environment"
section_number: "63.1945"
section_name: "When do I have to comply with this subpart?"
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "63"
part_name: "NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES"
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"
regulatory_source: "57 FR 61992, Dec. 29, 1992, unless otherwise noted."
cfr_part: "63"
---
# 63.1945 When do I have to comply with this subpart?
(a) If your landfill is a new affected source, you must comply with this subpart by January 16, 2003, or at the time you begin operating, whichever is later.
(b) If your landfill is an existing affected source, you must comply with this subpart by January 16, 2004.