Chlorine manufacturing, transportation and use are managed under controlled circumstances designed to prevent an emergency release. An important component of chlorine stewardship is developing and maintaining response plans in the event of an emergency. Trained employees, along with a comprehensive, written emergency response plan are necessary to mitigate the consequences of an emergency. Federal, state and provincial regulations, as well as various local fire and building codes regulate chemical emergency preparedness and response. All persons handling or responsible for the handling of chlorine must be familiar with the content of those requirements.