As far as staffing goes, there are engines that are split into groups, for example, E65 has to have 5 FF's where staffing permits, and E5 has to 'start each tour with 5 FF's'..
I interprate this, that if E65 only has 4 FF's, and E5 has 5 FF's, then a FF will be relocated from E5 to E65 to top up E65 that has '5 FF's where staffing permits', whereas E5 only has 'have 5 FF's at the start of each tour', meaning the 5th FF at E5 would be sent out to top up where, and if needed at 5 FF engine companies.
Would this be a correct interpretation??
Thanks
JT