40 CFR · Protection of Environment
§ 86.1822-01 — Durability data vehicle selection.
eCFR · current through Jul 16, 2026
§ 86.1822-01 Durability data vehicle selection.
(a)Within each durability group, the vehicle configuration which is expected to generate the highest level of exhaust emission deterioration on candidate vehicles in use, considering all constituents, shall be selected as the durability data vehicle configuration. The manufacturer will use good engineering judgment in making this selection.
(b)The manufacturer may select, using good engineering judgment, an equivalent or worst-case vehicle configuration in lieu of testing the vehicle selected in paragraph (a) of this section. Carryover data satisfying the provisions of § 86.1839-01 may also be used in lieu of testing the vehicle configuration selected in paragraph (a) of this section.
[64 FR 23925, May 4, 1999, as amended at 91 FR 7762, F
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Related
§ 86.1839-01
40 C.F.R. § 86.1839-01
Nearby Sections
11
§ 86.1816-18
Emission standards for heavy-duty vehicles.§ 86.1820-01
Durability group determination.§ 86.1821-01
Evaporative/refueling family determination.§ 86.1822-01
Durability data vehicle selection.§ 86.1826-01
Assigned deterioration factors for small-volume manufacturers and small-volume test groups.§ 86.1827-01
Test group determination.