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American National Standards Institute (ANSI) EC&M Electricians' Toolbox (E-T-E) International Association of Electrical Inspectors (IAEI) Institute of Electrical and Electronics Engineers (IEEE) International Brotherhood of Electrical Workers (IBEW) National Electrical Contractor’s Association (NECA) National Electrical Manufacturers Association (NEMA) InterNational Electrical Testing Association (NETA) National Fire Prevention Agency (NFPA)