OAR 340-256-0357: Emission Control System Inspection: Emissions Control Test Method for Clean-Screening Program

This rule documents the Clean-Screening test method. (1) DEQ may evaluate emissions of vehicles on the roadway using an optical attenuation method of observing actual pollutant emissions, remotely received electronic broadcasts of the vehicles’ emissions diagnostic data, or other means approved under section (5) of this rule. (2) A vehicle that meets DEQ’s emissions standards for on-road testing within a time period not to exceed one year from its required registration date will be issued a Certificate of Compliance without being required to pass the emissions inspection station test otherwise required. (3) Before implementing Clean-Screening under this rule, DEQ must conduct a rulemaking to establish processes, policies, and procedures, including: (a) The test technique for On-Road Clean-Screening; (b) The valid test period of On-Road Clean-Screening; (c) Procedures for identifying an on-road vehicle; (d) Procedures for protecting the test process from vandalism and cheating; and (e) Testing standards for Clean-Screening. (4) If DEQ uses the optical attenuation method for Clean-Screening, 1975 and newer model year vehicles are eligible for Clean-Screening. If DEQ uses broadcast data from vehicles’ ODB systems for Clean-Screening, 1996 and newer model year vehicles are eligible for Clean-Screening. (5) If DEQ develops and implements additional test methods for use in the Clean-Screening program, DEQ must develop documentation that such method will provide equal or greater accuracy in identifying vehicles that would pass or fail the otherwise required emission test.