The Clean Air Plan for Houston, formally known as a State Implementation Plan, describes how the Texas Commission on Environmental Quality expects pollution control measures to result in clean air for Houston. Those pollution control measures are adopted by both the federal and state (typically the TCEQ, although some measures are adopted by local governments or other state agencies) governments.

Emissions inventories are used to represent the present and future amount of pollution released into the air. Typically, emissions inventories are maintained by the TCEQ in five separate databases.