40 CFR § 62.14645 - What happens during periods of startup, shutdown, and malfunction?

---
identifier: "/us/cfr/t40/s62.14645"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 62.14645 - What happens during periods of startup, shutdown, and malfunction?"
title_number: 40
title_name: "Protection of Environment"
section_number: "62.14645"
section_name: "What happens during periods of startup, shutdown, and malfunction?"
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "62"
part_name: "APPROVAL AND PROMULGATION OF STATE PLANS FOR DESIGNATED FACILITIES AND POLLUTANTS"
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: "43 FR 51393, Nov. 3, 1978, unless otherwise noted."
cfr_part: "62"
---


# 62.14645 What happens during periods of startup, shutdown, and malfunction?

(a) The emission limitations and operating limits apply at all times except during periods of CISWI unit startup, shutdown, or malfunction as defined in § 62.14840.

(b) Each malfunction must last no longer than 3 hours.