Regulatory research

Cited answers from federal and state air law.

Ask about a rule and get an answer from the source text. Coverage includes federal 40 CFR, EPA guidance, EAB decisions, and EPA emission factors; state programs for New Mexico, Utah, Texas, Colorado, Virginia, West Virginia, Louisiana, and California; and local programs for Albuquerque and Bernalillo County. You do not need a project.

What you can ask

• What a rule requires by name or section, such as NSPS Subpart Dc or 40 CFR §63.7500
• Whether a rule applies to a given source, with the subpart cited
• A plain English summary of an NSPS or NESHAP subpart
• The right EPA emission factor or Part 60 reference method
• Texas Effects Screening Levels (ESLs) for air toxics

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