40 CFR § 60.1310 - May I deviate from the 13-month testing schedule if unforeseen circumstances arise?

---
identifier: "/us/cfr/t40/s60.1310"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 60.1310 - May I deviate from the 13-month testing schedule if unforeseen circumstances arise?"
title_number: 40
title_name: "Protection of Environment"
section_number: "60.1310"
section_name: "May I deviate from the 13-month testing schedule if unforeseen circumstances arise?"
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"
---


# 60.1310 May I deviate from the 13-month testing schedule if unforeseen circumstances arise?

You may not deviate from the 13-month testing schedules specified in §§ 60.1295(b) and 60.1305(b)(1) unless you apply to the Administrator for an alternative schedule, and the Administrator approves your request for alternate scheduling prior to the date on which you would otherwise have been required to conduct the next stack test.