40 CFR § 63.1585 - How does a Group 1 POTW treatment plant demonstrate compliance?
---
identifier: "/us/cfr/t40/s63.1585"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 63.1585 - How does a Group 1 POTW treatment plant demonstrate compliance?"
title_number: 40
title_name: "Protection of Environment"
section_number: "63.1585"
section_name: "How does a Group 1 POTW treatment plant demonstrate compliance?"
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"
---
# 63.1585 How does a Group 1 POTW treatment plant demonstrate compliance?
(a) An existing Group 1 POTW treatment plant demonstrates compliance by operating treatment and control devices which meet all requirements specified in the appropriate NESHAP. Requirements may include performance tests, routine monitoring, recordkeeping, and reporting.
(b) A new Group 1 POTW treatment plant demonstrates compliance by operating treatment and control devices which meet all requirements specified in the appropriate NESHAP and by meeting the requirements specified in § 63.1586, as applicable, as well as the applicable requirements in §§ 63.1588 through 63.1595.