40 CFR § 1036.440 - Warranty obligations related to in-use testing.

---
identifier: "/us/cfr/t40/s1036.440"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 1036.440 - Warranty obligations related to in-use testing."
title_number: 40
title_name: "Protection of Environment"
section_number: "1036.440"
section_name: "Warranty obligations related to in-use testing."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "U"
subchapter_name: "AIR POLLUTION CONTROLS"
part_number: "1036"
part_name: "CONTROL OF EMISSIONS FROM NEW AND IN-USE HEAVY-DUTY HIGHWAY ENGINES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401—7671q."
regulatory_source: "88 FR 4487, Jan. 24, 2023, unless otherwise noted."
cfr_part: "1036"
---


# 1036.440 Warranty obligations related to in-use testing.

Testing under this subpart that finds an engine exceeding emission standards under this subpart is not by itself sufficient to show a breach of warranty under 42 U.S.C. 7541(a)(1). A breach of warranty would also require that engines fail to meet one or both of the conditions specified in § 1036.120(a).