"Creating Practical Workplace Systems" Considerations for Effective Isolation Systems Sites should appoint a standout accountable representative, supported by a steering committee. Define the responsibilities and accountabilities of the persons performing isolations. Establish the training and competency requirements for permit issuers, permit holders and persons performing isolations. Ensure hazards associated with the planned activity are identified, appropriate mitigations documented and the work is authorised by a responsible person. Define isolation design criteria and process.