US lawFederal (United States)RegulationsTitle 40 CFR — Protection of EnvironmentChapter I — ENVIRONMENTAL PROTECTION AGENCYPart 63 — NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIESSubpart UUUU — National Emission Standards for Hazardous Air Pollutants for Cellulose Products Manufacturing63.558540 C.F.R. § 63.5585What records must I keep?Last amended: 2016Year: 2026Length: 15 wordsOfficial source Cite as 40 C.F.R. § 63.5585 (2026)You must keep the records in Table 9 to this subpart that apply to you.Previous40 C.F.R. § 63.5580Next40 C.F.R. § 63.5590