Here they are:
for vollies:-
1 Crown - unit manager, in charge of a unit cross between a brigade captain/ Group officer.
3 Pips - Deputy unit manager 2IC of the unit.
2 Pips - Rescue officer big units have these they are normally in charge of the units rescue teams (we don't have one)
1 Pip Admin officer, training officer etc.
3 Stripes - some trainers, Team leaders in some units (again we don't have them)
2 Stripes - team leaders
1 Stripes - Deputy team leaders
Paid staff have laurel's on theirs sorry can't remember them all
In my unit as well as others up here only the Boss (unit manager) & the deputy wear rank & that really depends on the circumstance.
Hope this helps cheers