40 CFR § 1054.655 - What special provisions apply for installing and removing altitude kits?

---
identifier: "/us/cfr/t40/s1054.655"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 1054.655 - What special provisions apply for installing and removing altitude kits?"
title_number: 40
title_name: "Protection of Environment"
section_number: "1054.655"
section_name: "What special provisions apply for installing and removing altitude kits?"
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "U"
subchapter_name: "AIR POLLUTION CONTROLS"
part_number: "1054"
part_name: "CONTROL OF EMISSIONS FROM NEW, SMALL NONROAD SPARK-IGNITION ENGINES AND EQUIPMENT"
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 59259, Oct. 8, 2008, unless otherwise noted."
cfr_part: "1054"
---


# 1054.655 What special provisions apply for installing and removing altitude kits?

An action for the purpose of installing or modifying altitude kits and performing other changes to compensate for changing altitude is not considered a prohibited act under 40 CFR 1068.101(b) if it is done consistent with the manufacturer's instructions.

[86 FR 34522, June 29, 2021]