40 CFR Part 50
21 sections.
- § 50.1Definitions
- § 50.2Scope
- § 50.3Reference conditions
- § 50.4National primary ambient air quality standards for sulfur oxides (sulfur dioxide)
- § 50.5National secondary ambient air quality standard for sulfur oxides (sulfur dioxide)
- § 50.6National primary and secondary ambient air quality standards for PM10
- § 50.7National primary and secondary ambient air quality standards for PM2.5
- § 50.8National primary ambient air quality standards for carbon monoxide
- § 50.9National 1-hour primary and secondary ambient air quality standards for ozone
- § 50.10National 8-hour primary and secondary ambient air quality standards for ozone
- § 50.11National primary and secondary ambient air quality standards for oxides of nitrogen (with nitrogen dioxide as the indicator)
- § 50.12National primary and secondary ambient air quality standards for lead
- § 50.13National primary and secondary ambient air quality standards for PM2.5
- § 50.14Treatment of air quality monitoring data influenced by exceptional events
- § 50.15National primary and secondary ambient air quality standards for ozone
- § 50.16National primary and secondary ambient air quality standards for lead
- § 50.17National primary ambient air quality standards for sulfur oxides (sulfur dioxide)
- § 50.18National primary ambient air quality standards for PM2.5
- § 50.19National primary and secondary ambient air quality standards for ozone
- § 50.20National primary ambient air quality standards for PM2.5
- § 50.21National secondary ambient air quality standards for sulfur oxides (sulfur dioxide)
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.