{"data":{"id":"us/40-cfr-63.4680","jurisdiction":"us","citation":"40 CFR 63.4680","heading":"What is the purpose of this subpart?","body":"This subpart establishes national emission standards for hazardous air pollutants (NESHAP) for wood building products surface coating sources. This subpart also establishes requirements to demonstrate initial and continuous compliance with the emission limitations.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES","Subpart QQQQ—National Emission Standards for Hazardous Air Pollutants: Surface Coating of Wood Building Products"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"ad47be69805bf99806cbed3b2a9fb8d73c41ec9c00aa50d66c6e992cfd0d04ae","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-appendix-a-to-subpart-pppp-of-part-63","next":"us/40-cfr-63.4681"},"notice":"GroundRules: Original legal text. Not legal advice."}