Internal combustion engine regulations

Internal combustion engine regulations are rules designed to limit harmful emissions and improve fuel efficiency. They set standards for pollutants like nitrogen oxides, carbon monoxide, and particulates that engines can produce. Manufacturers must design engines to meet these limits, often using cleaner technologies or emissions control devices. These regulations aim to reduce environmental impact, improve air quality, and promote sustainable transportation. They vary by country and region, with stricter standards typically in place in developed nations to encourage innovation and protect public health.