Or. Admin. R. 340-256-0400 - Emission Control System Inspection: Light Duty Motor Vehicle Emission Control Standards for Basic Program
This rule documents the standards not to be exceeded for light duty motor vehicles that undergo the Basic emission test.
(1) Light Duty Diesel Motor Vehicle Emission
Control Standards: 1.5% CO; there is no HC standard.
(2) Light Duty Gasoline Motor Vehicle
Emission Control Standards: Four-Stroke Cycle - Passenger Cars:
(a) 1975-1980 Model Year:
(A) With Catalyst: 1.0% CO and 220 ppm
HC;
(B) Without Catalyst: 2.5% CO
and 300 ppm HC.
(b) 1981
and Newer Model Year: at idle - 1.0% CO and 220 ppm HC;
(3) Light Duty Gasoline Motor Vehicle
Emission Control Standards - Light Duty Trucks:
(a) 6,000 GVWR or less:
(A) 1975-1980 Model Year:
(i) With Catalyst: 1.0% CO and 220 ppm
HC;
(ii) Without Catalyst: 2.5% CO
and 300 ppm HC.
(B) 1981
and Newer Model Year: at idle - 1.0% CO and 220 ppm HC;
(b) 6,001 to 8,500 GVWR:
(A) 1975-1978 Model Year: 2.5% CO and 300 ppm
HC;
(B) 1979-1980 Model Year:
(i) With Catalyst: 1.0% CO and 220 ppm
HC;
(ii) Without Catalyst: 2.5% CO
and 300 ppm HC.
(C) 1981
and Newer: at idle - 1.0% CO and 220 ppm HC;
(4) Gross CO emissions exceed the applicable
model year CO standard by a factor of one and one-half (1.5).
(5) Gross HC emissions exceed the applicable
model year HC standard by a factor of three (3).
(6) Visible emissions must not occur during
the steady-state unloaded and raised rpm engine idle portions of a gasoline
engine emission test from either the vehicle's exhaust system or the engine
crankcase. For a diesel engine emissions test, visible emissions must not
exceed 20% opacity.
(7) The
Director or Director's delegate may grant a waiver from standards listed in
sections (1)-(6) for vehicle classes that DEQ determines present prohibitive
inspection problems meeting the standards in sections (1) - (6) 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.]
Notes
Statutory/Other Authority: ORS 468A.360
Statutes/Other Implemented: ORS 468A.350 - 468A.385
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
No prior version found.