Section 520 - SULFUR COMPOUNDS IN FUEL520.1 It shall be unlawful for any person to burn, sell, or make available for sale for burning in fuel burning equipment, or refuse burning equipment, within the jurisdiction of the NWCAA, any fuel containing a weight of sulfur in excess of that allowed by Subsection 520.11, 520.12, 520.13, 520.14 and 520.15. 520.11 Distillate fuel oil classified as Grade No. 1 (ASTM designation: D396-69) shall contain three tenths percent (0.3%) or less sulfur by weight.520.12 Distillate fuel oil classified as Grade No. 2 (ASTM Designation: D396-69) shall contain five-tenths percent (0.5%) or less sulfur by weight.520.13 All other grades or kinds of fuel oil intended for use in fuel oil burning equipment including ASTM Designation: D396-69 Grades No. 4, 5, and 6 shall contain two percent (2.0%) or less sulfur by weight.520.14 Gaseous fuel shall contain 50 grains (412 ppm @ standard conditions) or less sulfur per 100 standard cubic feet except that this subsection shall not apply to those sources subject to Section 460.520.15 Solid fuel (such as, but not limited to, coal, coke, and refuse) shall contain two percent (2.0%) or less sulfur by weight.520.2 This section does not apply to:b. Used oil burned in space heaters that have a maximum heat input of less than 0.4 million BTU/hr; andc. Persons in the business of collecting used oil from residences authorized by a city, county, or the Utilities and Transportation Commission. Wash. Admin. Code Northwest Clean Air Agency, 500, 520
AMENDED: April 14, 1993, May 11, 1995, May 9, 1996