§ 86.095-26 - Mileage and service accumulation; emission measurements.

Link to an amendment published at 79 FR 23691, Apr. 28, 2014.

(a)-(b)(4)(i)(C) [Reserved]

(b)(4)(i)(D) For each engine family, the manufacturer will either select one vehicle previously selected under §86.094-24(b)(1) (i) through (iv) to be tested under high altitude conditions or provide a statement in accordance with §86.095-24(b)(1)(v). Vehicles shall meet emission standards under both low- and high-altitude conditions without manual adjustments or modifications. In addition, any emission control device used to conform with the emission standards under high-altitude conditions shall initially actuate (automatically) no higher than 4,000 feet above sea level.

(ii) Diesel. (A) The manufacturer shall determine, for each engine family, the mileage at which the engine-system combination is stabilized for emission data testing. The manufacturer shall maintain, and provide to the Administrator if requested, a record of the rationale used in making this determination. The manufacturer may elect to accumulate 4,000 miles on each test vehicle within an engine family without making a determination. The manufacturer must accumulate a minimum of 2,000 miles (3,219 kilometers) on each test vehicle within an engine family. All test vehicle mileage must be accurately determined, recorded, and reported to the Administrator. Any vehicle used to represent emission data vehicle selections under §86.094-24(b)(1) shall be equipped with an engine and emission control system that has accumulated the mileage the manufacturer chose to accumulate on the test vehicle. Fuel economy data generated from certification vehicles selected in accordance with §86.094-24(b)(1) with engine-system combinations that have accumulated more than 10,000 kilometers (6,200 miles) shall be factored in accordance with §600.006-87(c) of this chapter. Complete exhaust emission tests shall be conducted for each emission data vehicle selection under §86.094-24(b)(1). The Administrator may determine under §86.094-24(f) that no testing is required.

(B) Emission tests for emission data vehicle(s) selected for testing under §86.094-24(b)(1)(v) shall be conducted at the mileage (2,000 mile minimum) at which the engine-system combination is stabilized for emission testing or at the 6,436 kilometer (4,000 mile) test point under high-altitude conditions.

(C) [Reserved]

(D) For each engine family, the manufacturer will either select one vehicle previously selected under §86.094-26(b)(1) (i) through (iv) to be tested under high altitude conditions or provide a statement in accordance with §86.095-24(b)(1)(v). Vehicles shall meet emission standards under both low- and high-altitude conditions without manual adjustments or modifications. In addition, any emission control device used to conform with the emission standards under high-altitude conditions shall initially actuate (automatically) no higher than 4,000 feet above sea level.

(b)(4)(iii)-(d) [Reserved]

[58 FR 4036, Jan. 12, 1993, as amended at 75 FR 22979, Apr. 30, 2010]