40 CFR § 1045.520 - What testing must I perform to establish deterioration factors?

---
identifier: "/us/cfr/t40/s1045.520"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 1045.520 - What testing must I perform to establish deterioration factors?"
title_number: 40
title_name: "Protection of Environment"
section_number: "1045.520"
section_name: "What testing must I perform to establish deterioration factors?"
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "U"
subchapter_name: "AIR POLLUTION CONTROLS"
part_number: "1045"
part_name: "CONTROL OF EMISSIONS FROM SPARK-IGNITION PROPULSION MARINE ENGINES AND VESSELS"
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. 7401-7671q."
regulatory_source: "73 FR 59194, Oct. 8, 2008, unless otherwise noted."
cfr_part: "1045"
---


# 1045.520 What testing must I perform to establish deterioration factors?

Sections 1045.240 and 1045.245 describe the required methods for testing to establish deterioration factors for an engine family.