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Created by HEAT ©2017

 On-road testing is required in enhanced I/M areas and is an option for basic I/M areas. According to 40CFR §51.351 and §51.371, on-road emissions testing is not required on every vehicle or in every season. However the requirement includes testing at least 0.5% of the subject vehicle population, or 20,000 vehicles; whichever is less.

EDAR provides such an option for jurisdictions needing to observe the health of their fleet while providing a temporary deployment set up, such as HEAT's specially designed trailer or truss system.

57 FR 52987, Nov. 5, 1992, as amended at 65 FR 45535, July 24, 2000