§7547 Nonroad engines and vehicles

Summary

The EPA must study emissions from nonroad engines and vehicles (not locomotives) and finish that study within 12 months of November 15, 1990. Within 12 months after the study, after public notice and a hearing, the EPA must decide if carbon monoxide, nitrogen oxides, and volatile organic compounds from new and existing nonroad engines or vehicles significantly add to ozone or carbon monoxide levels in more than one area that failed the national air quality standards. If the EPA says yes, it must make rules within 12 months after the study to limit emissions from the new nonroad engines and vehicles that cause or add to the problem. Those rules must require the most pollution cuts that available technology can achieve, while considering cost, time for manufacturers, noise, energy, and safety, and they must cover the engines’ useful life. The EPA may also make rules for other harmful emissions if they are found to be significant contributors. Within 5 years after November 15, 1990, the EPA must make rules for new locomotives and locomotive engines using the best available technology while considering cost, noise, energy, and safety. The standards must take effect as soon as possible but allow time for needed technology and compliance. New engines may not use emission controls or designs that create an unreasonable risk to public health, welfare, or safety. The EPA will use existing testing and enforcement rules and will issue or update regulations needed to enforce these standards.