# 40 CFR § 86.001-23: Required data

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-40-86.001-23

## Section

- **Citation:** 40 CFR § 86.001-23
- **Heading:** Required data
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 40—Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS > PART 86—CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES > Subpart A—General Provisions for Heavy-Duty Engines and Heavy-Duty Vehicles

## Text

Section 86.001-23 includes text that specifies requirements that differ from § 86.098-23. Where a paragraph in § 86.098-23 is identical and applicable to § 86.001-23, this may be indicated by specifying the corresponding paragraph and the statement “[Reserved]. For guidance see § 86.098-23.”
(a)-(b)(1) [Reserved]. For guidance see § 86.098-23.
(b)(2) For light-duty vehicles and light-duty trucks, the manufacturer shall submit evaporative emission and/or refueling emission deterioration factors for each evaporative/refueling emission family-emission control system combination and all test data that are derived from testing described under § 86.001-21(b)(4)(i) designed and conducted in accordance with good engineering practice to assure that the vehicles covered by a certificate issued under § 86.001-30 will meet the evaporative and/or refueling emission standards in § 86.099-8 or § 86.001-9, as appropriate, for the useful life of the vehicle.
(b)(3) and (b)(4) [Reserved]. For guidance see § 86.098-23.
(c) Emission data (1) [Reserved]
(c)(2)-(e)(1) [Reserved]. For guidance see § 86.098-23.
(e)(2) For evaporative and refueling emissions durability, or light-duty truck or HDE exhaust emissions durability, a statement of compliance with paragraph (b)(2) of this section or § 86.098-23 (b)(1)(ii), (b)(3), or (b)(4) as applicable.
(3) For certification of vehicles with non-integrated refueling systems, a statement that the drivedown used to purge the refueling canister was the same as described in the manufacturer's application for certification. Furthermore, a description of the procedures used to determine the number of equivalent UDDS miles required to purge the refueling canisters, as determined by the provisions of § 86.001-21(b)(5)(v) and subpart B of this part. Furthermore, a written statement to the Administrator that all data, analyses, test procedures, evaluations and other documents, on which the above statement is based, are available to the Administrator upon request.
(f)-(g) [Reserved]
(h)-(m) [Reserved]. For guidance see § 86.098-23.
[61 FR 54887, Oct. 22, 1996, as amended at 62 FR 54720, Oct. 21, 1997; 79 FR 23687, Apr. 28, 2014]

## Nearby sections

- [40 CFR § 86.000-2 § 86.000-2 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-86.000-2.md)
- [40 CFR § 86.000-3 § 86.000-3 Abbreviations.](https://www.frixlaw.com/law-library/statutes/ecfr-40-86.000-3.md)
- [40 CFR § 86.000-7 § 86.000-7 Maintenance of records; submittal of information; right of entry.](https://www.frixlaw.com/law-library/statutes/ecfr-40-86.000-7.md)
- [40 CFR § 86.000-24 § 86.000-24 Test vehicles and engines.](https://www.frixlaw.com/law-library/statutes/ecfr-40-86.000-24.md)
- [40 CFR § 86.001-2 § 86.001-2 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-86.001-2.md)
- [40 CFR § 86.001-21 § 86.001-21 Application for certification.](https://www.frixlaw.com/law-library/statutes/ecfr-40-86.001-21.md)
- [40 CFR § 86.001-23 § 86.001-23 Required data.](https://www.frixlaw.com/law-library/statutes/ecfr-40-86.001-23.md)
- [40 CFR § 86.001-24 § 86.001-24 Test vehicles and engines.](https://www.frixlaw.com/law-library/statutes/ecfr-40-86.001-24.md)
- [40 CFR § 86.004-2 § 86.004-2 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-40-86.004-2.md)
- [40 CFR § 86.004-11 § 86.004-11 Emission standards for 2004 and later model year diesel heavy-duty engines and vehicles.](https://www.frixlaw.com/law-library/statutes/ecfr-40-86.004-11.md)
- [40 CFR § 86.004-15 § 86.004-15 NOX plus NMHC and particulate averaging, trading, and banking for heavy-duty engines.](https://www.frixlaw.com/law-library/statutes/ecfr-40-86.004-15.md)
- [40 CFR § 86.004-16 § 86.004-16 Prohibition of defeat devices.](https://www.frixlaw.com/law-library/statutes/ecfr-40-86.004-16.md)
- [40 CFR § 86.004-21 § 86.004-21 Application for certification.](https://www.frixlaw.com/law-library/statutes/ecfr-40-86.004-21.md)
- [40 CFR § 86.004-25 § 86.004-25 Maintenance.](https://www.frixlaw.com/law-library/statutes/ecfr-40-86.004-25.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-40-86.001-23. Check the current official text before relying on it. Not legal advice.