California Code of Regulations › Title 13 - Motor Vehicles › Division 3 - Air Resources Board › Chapter 2 - Enforcement of Vehicle Emission Standards and Surveillance Testing › Article 2.4 - Procedures for Reporting Failures of Emission-Related Components › Section 2147 - Demonstration of Compliance with Emission Standards

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) In order to overcome the presumption of
				  noncompliance set forth in title 13, California Code of Regulations, section
				  2123(b), the
				  average emissions of the vehicles, engines, and trailers with the failed
				  emission-related component must comply with applicable emission standards. A
				  manufacturer may demonstrate compliance with the emission standards by
				  following the procedures set forth in either subsection (b) or subsection (c)
				  of this section.
(b) A manufacturer
				  may test properly maintained in-use vehicles and trailers with the failed
				  emission-related component pursuant to the applicable certification emission
				  tests specified in title 13, California Code of Regulations, section
				  1960.1,
				  1961,
				  1961.2,
				  1961.3, or
				  1961.4, as applicable, for
				  passenger cars, light-duty trucks, and medium-duty vehicles, section
				  1956.8 for heavy-duty engines and
				  vehicles, section
				  1958 for motorcycles, and section
				  2442 for sterndrive/inboard marine
				  engines, and in title 17, California Code of Regulations, section
				  95663, for heavy-duty vehicles and
				  trailers. The emissions shall be projected to the end of the vehicle's or
				  engine's useful life using in-use deterioration factors. The in-use
				  deterioration factors shall be chosen by the manufacturer from among the
				  following:
(1) "Assigned" in-use
				  deterioration factors provided by the ARB on a manufacturer's request and based
				  on ARB in-use testing; or,
(2)
				  deterioration factors generated during certification, provided adjustments are
				  made to account for vehicle aging, customer mileage-accumulation practices,
				  type of failed component, component failure mode, effect of the failure on
				  other emission-control components, commercial fuel and lubricant quality, and
				  any other factor which may affect the vehicle's or engine's operating
				  conditions; or,
(3) subject to
				  approval by the Executive Officer, a manufacturer-generated deterioration
				  factor. The Executive Officer shall approve such deterioration factor if it is
				  based on in-use data generated from certification emission tests performed on
				  properly maintained and used vehicles in accordance with the procedures set
				  forth in section
				  1960.1,
				  1961,
				  1961.2, or
				  1961.4 of title 13 of the
				  California Code of Regulations, as applicable, for passenger cars, light-duty
				  trucks, and medium-duty vehicles; section
				  1956.8 of title 13 of the
				  California Code of Regulations heavy duty vehicles and engines; section
				  1958 of title 13 of the California
				  Code of Regulations for motorcycles; and section
				  95663 of title 17 of the
				  California Code of Regulations, for heavy-duty vehicles, and if the vehicles
				  from which it was derived are representative of the in-use fleet with regard to
				  emissions performance and are equipped with similar emission control technology
				  as vehicles with the failed component.