Provide incentives to trade in old cars or light duty trucks with low fuel efficiency and high emissions and buy new vehicles with higher efficiency and lower emissions; also called scrappage or vehicle early retirement programs
Set the number, type, proximity, and density of tobacco retailers, especially near homes and schools, via state or local zoning, licensing restrictions, or other regulations
Restrict full contact between youth football players via limits to the number of contact practices, head hits per player, delay tackling until a certain age, etc.