(a) Unreasonably loose, poorly fitted or torn clothing shall not be worn.
(b) Clothing which has been saturated with flammable or toxic substances shall be immediately removed, and the affected skin area thoroughly washed.
(c) Hazardous jewelry, such as finger rings, chain bracelets, etc., should not be worn. This is not intended to include wristwatches equipped with bands which will easily break.
(d) Hair of such length that it may become entangled in moving or rotating machinery shall be contained in a suitable manner. Beards and sideburns of employees shall be kept in such condition and of such length so as not to interfere with the proper and efficient use of gas masks, air masks, or other safety apparel or equipment.
(e) Where these rules and regulations prescribe the use of full body harnesses:
(f) Flame Resistant Clothing (FRC) shall be worn by all employees on the drilling site location within the radius of the rig anchors or within seventy five (75) feet of the well bore, whichever is greater, once the well has been drilled below surface casing and until the well is shut in for demobilization, with the exception of self-contained areas (such as truck cabs and field offices) and allowing for the employees to change into or out of the FRC garments.
(g) Special protective wearing apparel shall be provided and required to be worn as deemed necessary because of an unusually hazardous situation not normal to the job.
053-4 Wyo. Code R. § 4-4