Emission regulations are rules set by governments to control the amount of pollutants released into the air by vehicles, factories, and other sources. These regulations aim to reduce harmful emissions, such as carbon dioxide and nitrogen oxides, which can contribute to climate change and air quality issues. By establishing limits on emissions, authorities encourage the use of cleaner technologies and practices. These regulations often require industries to adopt specific technologies or processes to minimize their environmental impact. For example, the Clean Air Act in the United States sets standards for air quality and emissions, helping to protect public health and the environment. Compliance with these regulations is essential for sustainable development.