EPA collects data from the states and regions on their air quality and state implementation plan (SIP) progress. This information is compiled in a database, and used to create reports, trend charts, and maps.

SIP status reports

Reports for nonattainment area SIP requirements

• Status of SIP requirements, listed by state: select a state from the map to view its SIP requirements progress report.
• National Status of State SIP Requirements: full list of requirements for lead (2008 standard) SIP and reports on that requirement's progress, by state. Each requirement then links to a report on that requirement's progress, by state.

Reports for infrastructure SIP requirements

• Infrastructure SIP status reports for lead requirement
• Infrastructure SIP status reports listed by state

SIPs approved by EPA

• View approved SIPs by state, organized by states in each EPA region.

Air quality data 

Air Quality Trends: View lead level trends; measured nationally, regionally, and locally; up to 2014.

Design Values: view statistics that describe the air quality status of a given area relative to the level of EPA's National Ambient Air Quality Standards. These Excel reports are listed by pollutant.

Green Book

• 2008 Lead (Pb) Green Book: listings of areas designated nonattainment for each NAAQS pollutant. It includes current designation and classification status, area maps, reports, and Federal Register notices.