280 R.I. Code R. 280-RICR-30-15-2.5

Current through October 25, 2024

Section 280-RICR-30-15-2.5 - Applicability

These regulations apply to all heavy-duty diesel vehicles.

2.5.1Emission Standards

A. The inspection test type and emission standard for heavy-duty diesel trucks and buses, with a GVWR greater than eight thousand five hundred (8500) lbs., are established by the DMV as follows:

1. Heavy-duty Diesel Truck Emissions Test Type

Vehicle Class	Test Type
Vehicles eight thousand five hundred (8,5000) to ten thousand (10,000) lbs. GVWR	(RESERVED)
Vehicles over ten thousand (10,000) lbs.	SAE J1667 smoke opacity test

2. Heavy-duty Diesel Truck Emission Standard

Vehicle Class	Standard
Model years 1991 and newer and over ten thousand (10,000) lbs. GVWR	The level of peak smoke opacity shall not exceed forty (40) percent
Model years 1990 and older and over ten thousand (10,000) lbs.	The level of peak smoke opacity shall not exceed fifty-five (55) percent
Vehicles eight thousand five hundred (8,5000) to ten thousand (10,000) lbs.	(RESERVED)

3. Heavy-duty Diesel Bus Opacity Emissions Test Type

Vehicle Class	Test Type
Vehicles eight thousand five hundred (8,5000) to ten thousand (10,000) lbs. GVWR	(RESERVED)
Vehicles over ten thousand (10,000) lbs.	SAE J1667 smoke opacity test

4. Heavy-duty Diesel Bus Emissions Standard

Vehicle Class	Standard
Model years 1998 and newer and over ten thousand (10,000) lbs. GVWR	The level of peak smoke opacity shall not exceed thirty (30) percent
Model years 1987 and older and over ten thousand (10,000) lbs.	The level of peak smoke opacity shall not exceed forty (40) percent
Vehicles eight thousand five hundred (8,5000) to ten thousand (10,000) lbs.	(RESERVED)

2.5.2Test Specifications

In the J1667 Test, inspectors shall follow the specific procedures and adhere to the standards outlined in the heavy-duty diesel vehicle specifications.

280 R.I. Code R. 280-RICR-30-15-2.5

Adopted effective 12/31/2018