Diesel-powered equipment shall not be taken into or operated in places where flammable gas exceeds 1.0% at any point not less than 12 inches from the back, face, and rib.
Ariz. Admin. Code § R11-1-1852
Diesel-powered equipment shall not be taken into or operated in places where flammable gas exceeds 1.0% at any point not less than 12 inches from the back, face, and rib.
Ariz. Admin. Code § R11-1-1852