Title: The evolution of public policy
Subjects: Automotive Transportation, Commuting, Government policy, Environmental policy, Decision making, Environmental aspects, Milieubeleid, Auto's, Transports routiers, Aspect de l'environnement, Migrations alternantes, Politique publique, Politique de l'environnement, Prise de décision, Automobiles, pollution control devices, Air, pollution, government policy
Places: United States, États-Unis