Text in force at CS23-6: from CS23-5, effective 15 Aug 2017.
(a) The applicant must determine the loads acting upon all relevant structural components, in response to:
(1) interaction of systems and structures;
(2) structural design loads;
(3) flight load conditions; and
(4) ground and water load conditions.
(b) The complete pressurised cabin, including doors, windows, canopy and valves, is exposed as a pressure vessel for the maximum relief valve setting multiplied by a factor of 1.33, without considering other loads.
ED Decision 2017/013/R · Source