WAC 296-818-40005   Construction.  

     You must:

     • Make sure exhaust systems are constructed, installed, inspected, and maintained to meet both of the following:

     – The American National Standards Institute (ANSI), Z9.2-2001 for:

     ▪ Fundamentals Governing the Design and Operation of Local Exhaust Systems

     – The National Fire Protection Association (NFPA) 91-2004 for:

     ▪ Exhaust Systems for Air Conveying of Vapors, Gases and Noncombustible Particulate Solids.

Reference:	• Refer to the American National Standards Institute, ANSI Z9.4-1997 for information on the following:
	– Exhaust Systems for Abrasive-blasting Operations, Ventilation, and Safe Practices for Fixed Location Enclosures.

[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. 06-12-074, § 296-818-40005, filed 6/6/06, effective 9/1/06.]