NFPA Regulation 652 came into effect in the summer of 2015 and its changes affect many businesses in industries including agriculture, woodworking, metalworking, chemical, food production, and other areas where combustible dusts are produced. Complying with NFPA Regulation 652 means ensuring that your dust collection system, housekeeping, ignition source control, explosion prevention and protection, and fire protection all meet standards assigned in Regulation 652 or a specific regulation for your industry. Importantly, there are a few specific changes that you will have to make, as well as specific dust collection system standards that you will have to meet.