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

1. (1) CO idle emission values:

   1. (a) 1975–1978 Model Year: 4.0%;
   2. (b) 1979 and Newer Model Year without catalyst: 3.0%;
   3. (c) 1985 and Newer Model Year with catalyst: 1.0%.
2. (2) Gross CO emissions exceed the applicable model year CO standard by a factor of one and one-half (1.5).

3. (3) Hydrocarbon idle emission values:

   1. (a) 1975–1978 Model Year: 500 PPM;
   2. (b) 1979 and Newer Model Year without catalyst: 350 PPM;
   3. (c) 1985 and Newer Model Year with catalyst: 220 PPM.
4. (4) Gross HC emissions exceed the applicable model year HC standard by a factor of three (3).
5. (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. (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.]

Statutory/Other Authority

ORS 468A.360

Statutes/Other Implemented

ORS 468A.360

History

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