Tied Up 1 : (1) A fire company engaged for a period of time and so not available to cover its district. See: Out of Service. (2) A pumper connected to a hydrant
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}