State and federal rules play an important role in controlling major pollution sources, but the most immediate and equitable air quality improvements often come from local action. Cities can tailor strategies to their own pollution sources, geography and community needs using tools like ordinances, permits, building codes, land‑use planning and transportation policies. This section brings together a curated list of guides, case studies, model policies and other resources to help your city or town create its own customized mix of strategies.
