Rule R307-315 establishes maximum emission thresholds for the emissions of oxides of nitrogen (NOx) and carbon monoxide (CO) for new or modified natural gas-fired boilers with a total rated heat input of at least 2.0 million British Thermal Units per hour (MMBtu/hr) and not more than 5.0 MMBtu/hr.

KEY: air pollution, boiler, NOx, nitrogen oxides

Date of Last Change: November 1, 2024

Authorizing, and Implemented or Interpreted Law: 19-2-104