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40 C.F.R. §§ 1037.620–1037.622

3 sections in range

§1037.620. Responsibilities for multiple manufacturers.

40 C.F.R. § 1037.620

This section describes certain circumstances in which multiple manufacturers share responsibilities for vehicles they produce together. This section does not limit responsibilities that apply under the Act or these regulations for anyone meeting the definition of “manufacturer” in § 1037.801. Note that the definition of manufacturer is broad and can include persons not commercially considered to be manufacturers.
(a)
The following provisions apply when there are multiple persons meeting the definition of manufacturer in § 1037.801:
(1)
Each person meeting the definition of manufacturer must comply with the requirements of this part that apply to manufacturers. However, if one person complies with a specific requirement for a given vehicle, then all manufacturers are deemed to have complied with that specific requirement.
(2)
We will apply the requirements of subparts C and D of this part to the manufacturer that certifies the vehicle. Other manufacturers are required to comply with the requirements of subparts C and D of this part only when notified by us. In our notification, we will specify a reasonable time period in which you need to comply with the requirements identified in the notice. See § 1037.601 for the applicability of 40 CFR part 1068 to these other manufacturers and remanufacturers.
(b)
The provisions of § 1037.621, including delegated assembly, apply for certifying manufacturers that rely on other manufacturers to finish assembly in a certified configuration. The provisions of § 1037.622 generally apply for manufacturers that ship vehicles subject to the requirements of this part to a certifying secondary vehicle manufacturer. The provisions of § 1037.622 also apply to the secondary vehicle manufacturer. If you hold the certificate of conformity for a vehicle only with respect to exhaust or evaporative emissions, and a different company holds the other certificate of conformity for that vehicle, the provisions of § 1037.621 apply with respect to the certified configuration as described in your application for certification, and the provisions of § 1037.622 apply with respect to the certified configuration as described in the other manufacturer's application for certification.
(c)
Component manufacturers (such as tire manufacturers) providing test data to certifying vehicle manufacturers are responsible as follows for test components and emission test results provided to vehicle manufacturers for the purpose of certification under this part:
(1)
Such test results are deemed under § 1037.825 to be submissions to EPA. This means that you may be subject to criminal penalties under 18 U.S.C. 1001 if you knowingly submit false test results to the certifying manufacturer.
(2)
You may not cause a vehicle manufacturer to violate the regulations by rendering inaccurate emission test results you provide (or emission test results from testing of test components you provide) to the vehicle manufacturer (see 40 CFR 1068.101(c)).
(3)
Your provision of test components and/or emission test results to vehicle manufacturers for the purpose of certifying under this part are deemed to be an agreement to provide components to EPA for confirmatory testing under § 1037.235.
(d)
Component manufacturers may contractually agree to process emission warranty claims on behalf of the certifying manufacturer with respect to those components, as follows:
(1)
Your fulfillment of the warranty requirements of this part is deemed to fulfill the vehicle manufacturer's warranty obligations under this part with respect to components covered by your warranty.
(2)
You may not cause a vehicle manufacturer to violate the regulations by failing to fulfill the emission warranty requirements that you contractually agreed to fulfill (see 40 CFR 1068.101(c)).
(e)
We may require component manufacturers to provide information or take other actions. For example, we may require component manufacturers to test components they produce.
Notes, amendments, and revision history

Amendments

[81 FR 74048, Oct. 25, 2016, as amended at 89 FR 29787, Apr. 22, 2024; 91 FR 7792, Feb. 18, 2026]

Authority

Authority: 42 U.S.C. 7401—7671q.

Source

Source: 81 FR 74048, Oct. 25, 2016, unless otherwise noted.

Amendments

[81 FR 74048, Oct. 25, 2016, as amended at 89 FR 29787, Apr. 22, 2024; 91 FR 7792, Feb. 18, 2026]

§1037.621. Delegated assembly.

40 C.F.R. § 1037.621

(a)
This section describes provisions that allow certificate holders to sell or ship vehicles that are missing certain emission-related components if those components will be installed by a secondary vehicle manufacturer. Paragraph (g) of this section similarly describes how dealers and distributors may modify new vehicles with your advance approval. (Note: See § 1037.622 for provisions related to manufacturers introducing into U.S. commerce partially complete vehicles for which a secondary vehicle manufacturer holds the certificate of conformity.)
(b)
You do not need an exemption to ship a vehicle that does not include installation or assembly of certain emission-related components if those components are shipped along with the vehicle. For example, you may generally ship fuel tanks and aerodynamic devices along with vehicles rather than installing them on the vehicle before shipment. We may require you to describe how you plan to use this provision.
(c)
You may ask us at the time of certification for an exemption to allow you to ship your vehicles without emission-related components. If we allow this, you must provide emission-related installation instructions as specified in § 1037.130. You must follow delegated-assembly requirements in 40 CFR 1068.261 if you rely on secondary vehicle manufacturers to install certain technologies or components as specified in paragraph (d) of this section. For other technologies or components, we may specify conditions that we determine are needed to ensure that shipping the vehicle without such components will not result in the vehicle being operated outside of its certified configuration; this may include a requirement to comply with the delegated-assembly provisions in paragraph (d) of this section. We may consider your past performance when we specify the conditions that apply.
(d)
Delegated-assembly provisions apply as specified in this paragraph (d) if the certifying vehicle manufacturer relies on a secondary vehicle manufacturer to procure and install auxiliary power units, aerodynamic devices, hybrid components (for powertrain or power take-off), or natural gas fuel tanks. These provisions do not apply for other systems or components, such as air conditioning lines and fittings, except as specified in paragraph (c) of this section. Apply the provisions of 40 CFR 1068.261, with the following exceptions and clarifications:
(1)
Understand references to “engines” to refer to vehicles.
(2)
Understand references to “aftertreatment components” to refer to any relevant emission-related components under this paragraph (d).
(3)
Understand “equipment manufacturers” to be secondary vehicle manufacturers.
(4)
The provisions of 40 CFR 1068.261(b), (c)(7), (d), and (e) do not apply. Accordingly, the provisions of 40 CFR 1068.261(c) apply regardless of pricing arrangements.
(e)
Secondary vehicle manufacturers must follow the engine manufacturer's emission-related installation instructions. Not meeting the manufacturer's emission-related installation instructions is a violation of one or more of the prohibitions of § 1068.101. We may also require secondary vehicle manufacturers to recall defective vehicles under 40 CFR 1068.505 if we determine that their manufacturing practices caused vehicles to not conform to the regulations. Secondary vehicle manufacturers may be required to meet additional requirements if the certifying vehicle manufacturer delegates final assembly of emission controls as described in paragraph (d) of this section.
(f)
Except as allowed by § 1037.622, the provisions of this section apply to manufacturers for glider kits they produce. Note that under § 1037.620, glider kit manufacturers are generally presumed to be responsible (in whole or in part) for compliance with respect to vehicles produced from their glider kits, even if a secondary vehicle manufacturer holds the certificate under § 1037.622.
(g)
We may allow certifying vehicle manufacturers to authorize dealers or distributors to reconfigure/recalibrate vehicles after the vehicles have been introduced into commerce if they have not yet been delivered to the ultimate purchaser as follows:
(1)
This allowance is limited to changes from one certified configuration to another, as noted in the following examples:
(i)
If your vehicle family includes certified configurations with different axle ratios, you may authorize changing from one certified axle ratio to another.
(ii)
You may authorize adding a certified APU to a tractor.
(2)
Your final ABT report must accurately describe the vehicle's certified configuration as delivered to the ultimate purchaser. This means that the allowance no longer applies after you submit the final ABT report.
(3)
The vehicle label must accurately reflect the final vehicle configuration.
(4)
You must keep records to document modifications under this paragraph (g).
(5)
Dealers and distributors must keep a record of your authorizing instructions. Dealers and distributors that fail to follow your instructions or otherwise make unauthorized changes may be committing a tampering violation as described in 40 CFR 1068.105(b).
Notes, amendments, and revision history

Amendments

[81 FR 74048, Oct. 25, 2016, as amended at 86 FR 34490, June 29, 2021]

Authority

Authority: 42 U.S.C. 7401—7671q.

Source

Source: 81 FR 74048, Oct. 25, 2016, unless otherwise noted.

Amendments

[81 FR 74048, Oct. 25, 2016, as amended at 86 FR 34490, June 29, 2021]

§1037.622. Shipment of partially complete vehicles to secondary vehicle manufacturers.

40 C.F.R. § 1037.622

This section specifies how manufacturers may introduce partially complete vehicles into U.S. commerce (or in the case of certain custom vehicles, introduce complete vehicles into U.S. commerce for modification by a small manufacturer). The provisions of this section are intended to accommodate normal business practices without compromising the effectiveness of certified emission controls. You may not use the provisions of this section to circumvent the intent of this part.
(a)
The provisions of this section allow manufacturers to ship partially complete vehicles to secondary vehicle manufacturers or otherwise introduce them into U.S. commerce in the following circumstances:
(1)
Certified vehicles. Manufacturers may introduce partially complete tractors into U.S. commerce if they are covered by certificates of conformity and are in certified configurations. See § 1037.621 for vehicles not yet in a certified configuration when introduced into U.S. commerce.
(2)
Uncertified vehicles that will be certified by secondary vehicle manufacturers. Manufacturers may introduce into U.S. commerce partially complete vehicles for which they do not hold the required certificate of conformity only as allowed by paragraph (b) of this section; however, the requirements of this section do not apply for tractors or vocational vehicles with a date of manufacture before January 1, 2022, that are produced by a secondary vehicle manufacturer if they are excluded under § 1037.5.
(3)
Exempted vehicles. Manufacturers may introduce into U.S. commerce partially complete vehicles without a certificate of conformity if the vehicles are exempt under this part or under 40 CFR part 1068. This may involve the secondary vehicle manufacturer qualifying for the exemption.
(4)
Small manufacturers modifying certified tractors. Small manufacturers that build custom sleeper cabs or natural gas-fueled tractors may modify complete or incomplete vehicles certified as tractors, as specified by paragraph (d) of this section.
(b)
The provisions of this paragraph (b) generally apply where the secondary vehicle manufacturer has substantial control over the design and assembly of emission controls. They also apply where a secondary vehicle manufacturer qualifies for a permanent exemption. In unusual circumstances we may allow other secondary vehicle manufacturers to use these provisions. In determining whether a manufacturer has substantial control over the design and assembly of emission controls, we would consider the degree to which the secondary vehicle manufacturer would be able to ensure that the engine and vehicle will conform to the regulations in their final configurations.
(1)
A secondary vehicle manufacturer may finish assembly of partially complete vehicles in the following cases:
(i)
It obtains a vehicle that is not fully assembled with the intent to manufacture a complete vehicle in a certified or exempted configuration. For example, this would apply where a glider vehicle assembler holds a certificate that allows the assembler to produce certified glider vehicles from glider kits.
(ii)
It obtains a vehicle with the intent to modify it to a certified configuration before it reaches the ultimate purchaser. For example, this may apply for converting a gasoline-fueled vehicle to operate on natural gas under the terms of a valid certificate.
(2)
Manufacturers may introduce partially complete vehicles into U.S. commerce as described in this paragraph (b) if they have a written request for such vehicles from a secondary vehicle manufacturer that will finish the vehicle assembly and has certified the vehicle (or the vehicle has been exempted or excluded from the requirements of this part). The written request must include a statement that the secondary vehicle manufacturer has a certificate of conformity (or exemption/exclusion) for the vehicle and identify a valid vehicle family name associated with each vehicle model ordered (or the basis for an exemption/exclusion). The original vehicle manufacturer must apply a removable label meeting the requirements of 40 CFR 1068.45(b) that identifies the corporate name of the original manufacturer and states that the vehicle is exempt under the provisions of § 1037.622. The name of the certifying manufacturer must also be on the label or, alternatively, on the bill of lading that accompanies the vehicles during shipment. The original manufacturer may not apply a permanent emission control information label identifying the vehicle's eventual status as a certified vehicle. Note that an exemption allowing a glider assembler to install an exempt engine does not necessarily exempt the vehicle from the requirements of this part.
(3)
If you are the secondary vehicle manufacturer and you will hold the certificate, you must include the following information in your application for certification:
(i)
Identify the original manufacturer of the partially complete vehicle or of the complete vehicle you will modify.
(ii)
Describe briefly how and where final assembly will be completed. Specify how you have the ability to ensure that the vehicles will conform to the regulations in their final configuration. (Note: This section prohibits using the provisions of this paragraph (b) unless you have substantial control over the design and assembly of emission controls.)
(iii)
State unconditionally that you will not distribute the vehicles without conforming to all applicable regulations.
(4)
If you are a secondary vehicle manufacturer and you are already a certificate holder for other families, you may receive shipment of partially complete vehicles after you apply for a certificate of conformity but before the certificate's effective date. This exemption allows the original manufacturer to ship vehicles after you have applied for a certificate of conformity. Manufacturers may introduce partially complete vehicles into U.S. commerce as described in this paragraph (b)(4) if they have a written request for such vehicles from a secondary vehicle manufacturer stating that the application for certification has been submitted (instead of the information we specify in paragraph (b)(2) of this section). We may set additional conditions under this paragraph (b)(4) to prevent circumvention of regulatory requirements.
(5)
The provisions of this section also apply for shipping partially complete vehicles if the vehicle is covered by a valid exemption and there is no valid family name that could be used to represent the vehicle model. Unless we approve otherwise in advance, you may do this only when shipping engines to secondary vehicle manufacturers that are certificate holders. In this case, the secondary vehicle manufacturer must identify the regulatory cite identifying the applicable exemption instead of a valid family name when ordering engines from the original vehicle manufacturer.
(6)
Both original and secondary vehicle manufacturers must keep the records described in this section for at least five years, including the written request for exempted vehicles and the bill of lading for each shipment (if applicable). The written request is deemed to be a submission to EPA.
(7)
These provisions are intended only to allow secondary vehicle manufacturers to obtain or transport vehicles in the specific circumstances identified in this section so any exemption under this section expires when the vehicle reaches the point of final assembly identified in paragraph (b)(3)(ii) of this section.
(8)
For purposes of this section, an allowance to introduce partially complete vehicles into U.S. commerce includes a conditional allowance to sell, introduce, or deliver such vehicles into commerce in the United States or import them into the United States. It does not include a general allowance to offer such vehicles for sale because this exemption is intended to apply only for cases in which the certificate holder already has an arrangement to purchase the vehicles from the original manufacturer. This exemption does not allow the original manufacturer to subsequently offer the vehicles for sale to a different manufacturer who will hold the certificate unless that second manufacturer has also complied with the requirements of this part. The exemption does not apply for any individual vehicles that are not labeled as specified in this section or which are shipped to someone who is not a certificate holder.
(9)
We may suspend, revoke, or void an exemption under this section, as follows:
(i)
We may suspend or revoke your exemption if you fail to meet the requirements of this section. We may suspend or revoke an exemption related to a specific secondary vehicle manufacturer if that manufacturer sells vehicles that are in not in a certified configuration in violation of the regulations. We may disallow this exemption for future shipments to the affected secondary vehicle manufacturer or set additional conditions to ensure that vehicles will be assembled in the certified configuration.
(ii)
We may void an exemption for all the affected vehicles if you intentionally submit false or incomplete information or fail to keep and provide to EPA the records required by this section.
(iii)
The exemption is void for a vehicle that is shipped to a company that is not a certificate holder or for a vehicle that is shipped to a secondary vehicle manufacturer that is not in compliance with the requirements of this section.
(iv)
The secondary vehicle manufacturer may be liable for penalties for causing a prohibited act where the exemption is voided due to actions on the part of the secondary vehicle manufacturer.
(c)
Provide instructions along with partially complete vehicles including all information necessary to ensure that an engine will be installed in its certified configuration.
(d)
Small manufacturers that build custom sleeper cabs or natural gas-fueled tractors may modify complete or incomplete vehicles certified as tractors, subject to the provisions of this paragraph (d). Such businesses are secondary vehicle manufacturers.
(1)
Secondary vehicle manufacturers may not modify the vehicle body in front of the b-pillar or increase the effective frontal area of the certified configuration including consideration of the frontal area of the standard trailer. For high-roof custom sleeper tractors, this would generally mean that no part of the added sleeper compartment may extend beyond 102 inches wide or 162 inches high (measured from the ground), which are the dimensions of the standard trailer for high-roof tractors under this part. Note that these dimensions have a tolerance of ±2 inches.
(2)
The certifying manufacturer may have responsibilities for the vehicle under this section, as follows:
(i)
If the vehicle being modified is a complete tractor in a certified configuration, the certifying manufacturer has no additional responsibilities for the vehicle under this section.
(ii)
If the vehicle being modified is partially complete only because it lacks body components to the rear of the b-pillar (but is otherwise a complete tractor in a certified configuration), the certifying manufacturer has no additional responsibilities for the vehicle under this section.
(iii)
If the vehicle being modified is an incomplete tractor not in a certified configuration, the certifying manufacturer must comply with the provisions of § 1037.621 for the vehicle.
(3)
The secondary vehicle manufacturer must add a permanent supplemental label to the vehicle near the original manufacturer's emission control information label. On the label identify your corporate name and include the statement: “THIS TRACTOR WAS MODIFIED UNDER 40 CFR 1037.622.”
(4)
See § 1037.150 for additional interim options that may apply.
(5)
[Reserved]
(6)
Modifications under this paragraph (d) do not violate 40 CFR 1068.101(b)(1).
Notes, amendments, and revision history

Amendments

[81 FR 74048, Oct. 25, 2016, as amended at 89 FR 29787, Apr. 22, 2024; 91 FR 7792, Feb. 18, 2026]

Authority

Authority: 42 U.S.C. 7401—7671q.

Source

Source: 81 FR 74048, Oct. 25, 2016, unless otherwise noted.

Amendments

[81 FR 74048, Oct. 25, 2016, as amended at 89 FR 29787, Apr. 22, 2024; 91 FR 7792, Feb. 18, 2026]