40 CFR § 60.1710 - What happens to the emission limits during periods of startup, shutdown, and malfunction?
---
identifier: "/us/cfr/t40/s60.1710"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 60.1710 - What happens to the emission limits during periods of startup, shutdown, and malfunction?"
title_number: 40
title_name: "Protection of Environment"
section_number: "60.1710"
section_name: "What happens to the emission limits during periods of startup, shutdown, and malfunction?"
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "60"
part_name: "STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES"
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: "36 FR 24877, Dec. 23, 1971, unless otherwise noted."
cfr_part: "60"
---
# 60.1710 What happens to the emission limits during periods of startup, shutdown, and malfunction?
(a) The emission limits of this subpart apply at all times except during periods of municipal waste combustion unit startup, shutdown, or malfunction.
(b) Each startup, shutdown, or malfunction must not last for longer than 3 hours.
(c) A maximum of 3 hours of test data can be dismissed from compliance calculations during periods of startup, shutdown, or malfunction.
(d) During startup, shutdown, or malfunction periods longer than 3 hours, emissions data cannot be discarded from compliance calculations and all provisions under § 60.11(d) apply.