R307.  Environmental Quality, Air Quality.
R307-207.  Residential Fireplaces and Solid Fuel Burning Devices.
R307-207-1.  Purpose and Definition.
	R307-207 establishes emission standards for residential fireplaces and solid fuel burning devices.
	"Solid fuel burning device" means any device used for burning wood, coal, or any other nongaseous and non-liquid fuel, including, but not limited to, wood stoves, but excluding outdoor wood boilers, which are regulated under R307-208.

R307-207-2.  Applicability.
	(1)  R307-207 applies to residential fireplaces and solid fuel burning devices in all areas of the state, except for PM10 and PM2.5 nonattainment and maintenance areas. R307-302 applies to PM10 and PM2.5 nonattainment or maintenance areas.

R307-207-3.  Opacity for Residential Heating.
	Visible emissions from residential solid fuel burning devices and fireplaces shall be limited to a shade or density no darker than 20% opacity as measured by EPA Method 9, except for the following:
	(1)  An initial fifteen minute start-up period, and
	(2)  A period of fifteen minutes in any three-hour period in which emissions may exceed the 20% opacity limitation for refueling.

KEY: fireplaces, residential, solid fuel burning
Date of Enactment or Last Substantive Amendment:  November 8, 2012
Notice of Continuation:  December 9, 2019
Authorizing, and Implemented or Interpreted Law:  19-2-101; 19-2-104