All plastics, spray-on strippable coatings, and structural materials used in the asbestos abatement process must be certified as fire retardant or non-combustible. This includes, but is not limited to, plastic sheeting, temporary structures, separations, supports, and scaffolding. Wood which is pressure impregnated and certified as fire retardant is acceptable. All pressure impregnated wood used shall be stamped by the approved applicator (C.C.R. Title 19, Division 1, Chapter 8, Article 5) as being fire retardant, and the stamp on the wood shall be visible upon inspection. Material Safety Data Sheets (MSDS) provided by the manufacturer shall be maintained at the job site for all fire- retardant plastics and shall be made available upon request by the Fire Department.
EXCEPTION: Tape used to hang poly and to tape critical barriers need not be fire retardant. Plexiglass used for viewing ports into the work area need not be fire retardant provided the ports are not larger than 4 square feet and have a total aggregate area of less than 40 square feet.