EPA Enforcement Official Touts Focus On Mobile Sources To Cut Emissions

A top official in EPA’s Office of Enforcement & Compliance Assurance (OECA) air division is touting the pollution reduction benefits of the agency’s growing focus on stopping violations and ensuring compliance with its mobile source air rules, saying existing cases are helping to secure significant cuts in vehicle emissions. Automobiles and other mobile sources are the largest contributor of nitrogen oxide (NOx) emissions, which is the country’s largest precursor to ozone, and also the nation’s largest source of greenhouse gas...