Or. Admin. R. 340-256-0420

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Current through Register Vol. 63, No. 6, June 1, 2024

Section 340-256-0420 - Emission Control System Inspection: Heavy-Duty Gasoline Motor Vehicle Emission Control Standards

This rule documents the standards not to be exceeded for heavy duty gasoline vehicle emission tests.

(1) CO idle emission values:

(a) 1975-1978 Model Year: 4.0%;

(b) 1979 and Newer Model Year without catalyst: 3.0%;

(c) 1985 and Newer Model Year with catalyst: 1.0%.

(2) Gross CO emissions exceed the applicable model year CO standard by a factor of one and one-half (1.5).

(3) Hydrocarbon idle emission values:

(a) 1975-1978 Model Year: 500 PPM;

(b) 1979 and Newer Model Year without catalyst: 350 PPM;

(c) 1985 and Newer Model Year with catalyst: 220 PPM.

(4) Gross HC emissions exceed the applicable model year HC standard by a factor of three (3).

(5) Visible emission must not occur during the steady-state unloaded engine idle and raised rpm portion of the emission test from either the vehicle's exhaust system or the engine crankcase.

(6) The Director may grant a waiver from standards listed in sections (1)-(4) for vehicle classes that DEQ determines present prohibitive inspection problems meeting the listed standards in sections (1) - (4) if DEQ deems the motor vehicle pollution system otherwise meets the standards of this Division.

[NOTE: This rule is included in the State of Oregon Clean Air Act Implementation Plan that EQC adopted under OAR 340-200-0040.]

Or. Admin. R. 340-256-0420

DEQ 136, f. 6-10-77, ef. 7-1-77; DEQ 9-1978, f. & ef. 7-7-78; DEQ 22-1979, f. & ef. 7-5-79; DEQ 18-1980, f. & ef. 6-25-80; DEQ 15-1981(Temp), f. & ef. 5-6-81; DEQ 20-1981, f. 7-28-81, ef. 8-1-81; DEQ 18-1986, f. 9-18-86, ef. 10-1-86; DEQ 4-1993, f. & cert. ef. 3-10-93; DEQ 16-1993, f. & cert. ef. 11-4-93; DEQ 15-1994, f. 6-8-94, cert. ef. 7-1-94; DEQ 25-1996, f. & cert. ef. 11-26-96; DEQ 14-1999, f. & cert. ef. 10-14-99, Renumbered from 340-024-0335; DEQ 21-2020, amend filed 11/19/2020, effective 11/19/2020

Statutory/Other Authority: ORS 468A.360

Statutes/Other Implemented: ORS 468A.360