As a "First Responder" for gas emergency there have been many times when I arrived on scene and fd would ask me what should we do , OR , I've asked the fd to assist me with entry into a house when's there's blowing gas possible filling the house on a contractor damage with complete hesitation by the fd because lack of experience with natural gas emergencies.. I've been a volunteer firefighter for 10 yrs so much love to the FD.. my point is , in my opinion I believe Gas Emergency responders plus all supervisors, electric and gas should be code 3.. Fd is great, but we are the professionals when it comes to utility emergencies...