# 40 CFR § 1037.115: Other requirements

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.115

## Section

- **Citation:** 40 CFR § 1037.115
- **Heading:** Other requirements
- **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 U—AIR POLLUTION CONTROLS > PART 1037—CONTROL OF EMISSIONS FROM NEW HEAVY-DUTY MOTOR VEHICLES > Subpart B—Emission Standards and Related Requirements

## Text

Vehicles required to meet the emission standards of this part must meet the following additional requirements, except as noted elsewhere in this part:
(a) Adjustable parameters. Vehicles that have adjustable parameters must meet all the requirements of this part for any adjustment in the practically adjustable range. We may require that you set adjustable parameters to any specification within the practically adjustable range during any testing. See 40 CFR 1068.50 for general provisions related to adjustable parameters. You must ensure safe vehicle operation throughout the practically adjustable range of each adjustable parameter, including consideration of production tolerances. Note that adjustable roof fairings are deemed not to be adjustable parameters.
(b) Prohibited controls. You may not design your vehicles with emission control devices, systems, or elements of design that cause or contribute to an unreasonable risk to public health, welfare, or safety while operating. For example, this would apply if the vehicle emits a noxious or toxic substance it would otherwise not emit that contributes to such an unreasonable risk.
(c) [Reserved]
(d) Defeat devices. 40 CFR 1068.101 prohibits the use of defeat devices.
[81 FR 74048, Oct. 25, 2016, as amended at 86 FR 34459, June 29, 2021; 88 FR 4637, Jan. 24, 2023; 89 FR 29771, Apr. 22, 2024; 91 FR 7786, Feb. 18, 2026]

## Nearby sections

- [40 CFR § 1037.1 § 1037.1 Applicability.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.1.md)
- [40 CFR § 1037.2 § 1037.2 Who is responsible for compliance?](https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.2.md)
- [40 CFR § 1037.5 § 1037.5 Excluded vehicles.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.5.md)
- [40 CFR § 1037.10 § 1037.10 How is this part organized?](https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.10.md)
- [40 CFR § 1037.15 § 1037.15 Do any other regulation parts apply to me?](https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.15.md)
- [40 CFR § 1037.30 § 1037.30 Submission of information.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.30.md)
- [40 CFR § 1037.101 § 1037.101 Overview of emission standards.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.101.md)
- [40 CFR § 1037.102 § 1037.102 Criteria pollutant exhaust emission standards—NOX, HC, PM, and CO.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.102.md)
- [40 CFR § 1037.103 § 1037.103 Evaporative and refueling emission standards.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.103.md)
- [40 CFR § 1037.115 § 1037.115 Other requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.115.md)
- [40 CFR § 1037.120 § 1037.120 Emission-related warranty requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.120.md)
- [40 CFR § 1037.125 § 1037.125 Maintenance instructions and allowable maintenance.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.125.md)
- [40 CFR § 1037.130 § 1037.130 Assembly instructions for secondary vehicle manufacturers.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.130.md)
- [40 CFR § 1037.135 § 1037.135 Labeling.](https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.135.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-40-1037.115. Check the current official text before relying on it. Not legal advice.