Progress Report 1 : A periodic radio report from the officer in charge at a fire to the fire alarm office, often relayed every few minutes, giving important information about the fire
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}