Q. We are trying to come to grips with the requirement in NFPA 70E for an arc flash analysis every five years.  Does that mean we must do one immediately or do we have a specific time to get the first one done?  Is this being enforced by a regulatory agency (other than NFPA) such as OSHA?  Can someone refer me to the code?  We have a proposal from an electrical contractor but the cost seems very high.