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WebAug 21, 2024 · Emissions testing, also known as a smog check, is required in many parts of the country. The procedure helps ensure your vehicle meets the emissions standards set by the Environmental … WebRegistered vehicles must complete an emissions inspection every 1 year or 2 years, based on model year and weight. Some types of vehicles are exempt from inspection . Read on … WebSep 9, 2024 · Zars bought one of the trucks that had appeared on the show and took it to an EPA-certified lab in Colorado for emissions testing. The lab discovered that the modified truck emitted 30 to... roll off for pickup truck bed