I am installing a horn strobe in a building in a chicago suburb. The building engineer insists that the NFPA requires red conduit for fire alarms. The contractor that I am working for did not send this out and uncolored conduit was used. Does any one know if red conduit is required for fire alarm work. I thought the NEC did not require conduit for this application. The AHJ is out for the holidays and I don't recall this being required through NFPA requirements unless this is required by the municipality where I am working. Can anyone shed some light on what the NFPA requires?