# 40 C.F.R. § 85.1901 (2026): Applicability

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T40_P85_S85_1901

## Section

- **Citation:** 40 C.F.R. § 85.1901 (2026)
- **Heading:** Applicability
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 40 CFR: Protection of Environment / Chapter I / Part 85 / Subpart T / § 85.1901: § 85.1901   Applicability.

## Text

(a) The requirements of this subpart shall be applicable to all 1972 and later model year motor vehicles and motor vehicle engines, except that the provisions of 40 CFR 1068.501 apply instead for heavy-duty motor vehicle engines and heavy-duty motor vehicles certified under 40 CFR part 86, subpart A, or 40 CFR part 1036 or 1037 starting January 1, 2018. (b) The requirement to report emission-related defects affecting a given class or category of vehicles or engines shall remain applicable for five years from the end of the model year in which such vehicles or engines were manufactured. [81 FR 73972, Oct. 25, 2016, as amended at 88 FR 4472, Jan. 24, 2023]

## Nearby sections

- [40 C.F.R. § 85.1901 (2026) § 85.1901   Applicability.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P85_S85_1901.md)
- [40 C.F.R. § 85.1902 (2026) § 85.1902   Definitions.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P85_S85_1902.md)
- [40 C.F.R. § 85.1903 (2026) § 85.1903   Emissions defect information report.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P85_S85_1903.md)
- [40 C.F.R. § 85.1904 (2026) § 85.1904   Voluntary emissions recall report; quarterly reports.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P85_S85_1904.md)
- [40 C.F.R. § 85.1905 (2026) § 85.1905   Alternative report formats.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P85_S85_1905.md)
- [40 C.F.R. § 85.1906 (2026) § 85.1906   Report filing: Record retention.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P85_S85_1906.md)
- [40 C.F.R. § 85.1907 (2026) § 85.1907   Responsibility under other legal provisions preserved.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P85_S85_1907.md)
- [40 C.F.R. § 85.1908 (2026) § 85.1908   Disclaimer of production warranty applicability.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P85_S85_1908.md)
- [40 C.F.R. § 85.1909 (2026) § 85.1909   Treatment of confidential information.](https://www.frixlaw.com/law-library/statutes/CFR_T40_P85_S85_1909.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T40_P85_S85_1901. Check the current official text before relying on it. Not legal advice.