Part 4provides for the contents of safety cases. Each facility must be covered by a safety case. A safety case includes a description of the facility, the formal safety assessment for the facility and how the safety management system for the facility will be implemented. A safety case is to be submitted to NOPSEMA and NOPSEMA may accept or reject the safety case or accept the safety case subject to conditions or limitations.

Part 4 provides for the contents of safety cases. Each facility must be covered by a safety case. A safety case includes a description of the facility, the formal safety assessment for the facility and how the safety management system for the facility will be implemented. A safety case is to be submitted to NOPSEMA and NOPSEMA may accept or reject the safety case or accept the safety case subject to conditions or limitations.

An operator of a facility must submit a revised safety case if there is a change in circumstances or operations. NOPSEMA may also request an operator to submit a revised safety case.

Under Part 5 NOPSEMA may require an operator of a facility or proposed facility to provide a validation in respect of the proposed facility or a proposed significant change to an existing facility.