Links to rules adopted by other governmental bodies. " /> Fire hydrant spacing will be 500 feet maximum with six (6) inch minimum pipe size. Yes, I think NFPA 24 v2010 "mentions", and defers, "spacing" of hydrants basically to the authority having jurisdiction. Answer -. 7. otherwise noted. Agreements the TCEQ has with other state agencies and has adopted by reference. (2) "Fire protection sprinkler system contractor" means an individual or organization that offers to undertake, represents itself as being able to undertake, or undertakes the plan, sale, installation, maintenance, or servicing of: (A) a fire protection sprinkler system; or (B) any part of a fire protection sprinkler system.