Class of Designated Petroleum Activity Required Safety Permit Prerequisite Safety Cases) Well Work Well Work Safety Permit Well Work Safety Case and Non-production Safety Case or Production Safety Case 14 Production Production Safety Permit Design Safety Casein some cases and Production Safety Case Decommissioning Decommissioning Safety Permit Decommissioning Safety Case Table 1: Class of designated petroleum activity, required Safety Permit and prerequisite safety case It should be noted that insofar as the safety case requirements prescribed by the Framework are in respect of classes of petroleum activities (and not petroleum infrastructure), the scope of an individual safety case will depend on the nature of the petroleum activity to which it relates and the circumstances in which the petroleum activity is to be carried out. Guidance on the scope of the individual safety cases is given in the relevant sections of these Guidelines (sections 4 to 8). For activities requiring a Well Work Safety Permit, a Production Safety Case or Non- production Safety Case will generically describe the petroleum activities that can be carried on by such an installation. Then, amongst other things, the Well Work Safety Case must state and demonstrate that the said installation is suitable to safely carryout the Well Work Activity. 1.3.3