['Air Programs']
['Air Emissions']
07/08/2024
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Except as specified in §1037.150, the requirements of this section apply beginning January 1, 2017.
(a) Vehicles produced from glider kits and other glider vehicles are subject to the same standards as other new vehicles, including the applicable vehicle standards described in Subpart B of this part. Note that this requirement for the vehicle generally applies even if the engine meets the criteria of paragraph (c)(1) of this section. For engines originally produced before 2017, if you are unable to obtain a fuel map for an engine you may ask to use a default map, consistent with good engineering judgment.
(b) Section 1037.601(a)(1) disallows the introduction into U.S. commerce of a new tractor or vocational vehicle (including a vehicle assembled from a glider kit) unless it has an engine that is certified to the applicable standards in 40 CFR parts 86 and 1036. Except as specified otherwise in this part, the standards apply for engines used in glider vehicles as follows:
(1) The engine must meet the greenhouse gas standards of 40 CFR part 1036 that apply for the engine model year corresponding to the vehicle's date of manufacture. For example, for a vehicle with a 2024 date of manufacture, the engine must meet the greenhouse gas standards that apply for model year 2024.
(2) The engine must meet the criteria pollutant standards of 40 CFR part 86 or 40 CFR part 1036 that apply for the engine model year corresponding to the vehicle's date of manufacture.
(3) The engine may be from an earlier model year if the standards were identical to the currently applicable engine standards.
(4) Note that alternate standards or requirements may apply under §1037.150.
(c) The engine standards identified in paragraph (b) of this section do not apply for certain engines when used in glider kits. These engines remain subject to the standards to which they were previously certified.
(1) The allowance in this paragraph (c) applies only for the following engines:
(i) Certified engines still within their original useful life in terms of both miles and years. Glider vehicles produced using engines meeting this criterion are exempt from the requirements of paragraph (a) of this section if the glider vehicle configuration is identical to a configuration previously certified to the requirements of this part 1037 for a model year the same as or later than the model year of the engine.
(ii) Certified engines of any age with less than 100,000 miles of engine operation. This is intended for specialty vehicles (such as fire trucks) that have very low usage rates. These vehicles are exempt from the requirements of paragraph (a) of this section, provided the completed vehicle is returned to the owner of the engine in a configuration equivalent to that of the donor vehicle.
(iii) Certified engines less than three years old with any number of accumulated miles of engine operation. Vehicles using these engines must comply with the requirements of paragraph (a) of this section.
(2) For remanufactured engines, these eligibility criteria apply based on the original date of manufacture rather than the date of remanufacture. For example, an engine originally manufactured in 2003 that is remanufactured in 2012 after 350,000 miles, then accumulates an additional 150,000 miles before being installed in a model year 2020 glider would be considered to be 17 years old and to have accumulated 500,000 miles.
(3) The provisions of this paragraph (c) apply only where you can show that one or more criteria have been met. For example, to apply the criterion of paragraph (c)(1)(i) or (ii), you must be able prove the number of miles the engine has accumulated.
(d) All engines used in glider vehicles (including remanufactured engines) must be in a certified configuration and properly labeled. This requirement applies equally to any engine covered by this section. Depending on the model year of the engine (and other applicable provisions of this section), it may be permissible for the engine to remain in its original certified configuration or another configuration of the same original model year. However, it may be necessary to modify the engine to a newer certified configuration.
(e) The following additional provisions apply:
(1) The Clean Air Act definition of “manufacturer” includes anyone who assembles motor vehicles, including entities that install engines in or otherwise complete assembly of glider kits.
(2) Vehicle manufacturers (including assemblers) producing glider vehicles must comply with the reporting and recordkeeping requirements in §1037.250.
(3) Manufacturers of glider kits providing glider kits for the purpose of allowing another manufacturer to assemble vehicles under this section are subject to the provisions of §§1037.620 through 1037.622, as applicable. For example, introducing an uncertified glider kit into U.S. commerce may subject you to penalties under 40 CFR 1068.101 if the completed glider vehicle does not conform fully with the regulations of the part at any point before being placed into service.
[86 FR 34490, Jun. 29, 2021; 88 FR 4653, Jan. 24, 2023; 89 FR 29788, Apr. 22, 2024]
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