NFPA 652 (2016) states that a dust hazard analysis should be completed for all new facilities. For existing facilities, even those that are NOT undergoing material modification, NFPA 652 states that the owner/operator must schedule and complete DHA's of existing processes and facility compartments within a 3-year period from the effective date of the standard. Since the effective date of that standard was Sept.7, 2015, this means that the deadline to conduct the DHA has passed (on Sept.7, 2 [...]