Most employees who are members of unions have most of their terms of employment set by an Enterprise Bargaining Agreement.
For those in the rail industry in WA the relevant EBA for each class of worker is given below.
*EA: Enterprise Agreement IA: Industrial agreement
RTBU PTA WA Branch
CSA, PTA, Carpark Attendants, CMR Operators
Railcar Drivers, Trainers & Coordinators
Delron Cleaning Pty Ltd
EDI Bombardier Transportation (maintenance) Pty Ltd
RTBU WA Branch
ARTC Agreement 2013
Transfield Services (Australia) Pty Limited Rail Maintenance EA 2011
WATCO WA Rail Operations EA 2017