053-4 Wyo. Code R. § 75.400-1
Current through April 27, 2019
(a) The term "coal dust" means particles of coal that can pass a No. 20 sieve.
(b) The term "float coal dust" means the coal dust consisting of particles of coal that can pass a No. 200 sieve.
(c) The term "loose coal" means coal fragments larger in size than coal dust.
053-4 Wyo. Code R. § 75.400-1