- a. [FSR 41] Habitable modules shall maintain dimensional stability required for functionality of structural and mechanical attachments, pressure connections, and openings for doors or hatches throughout their service life in the applicable environments.
- b. [FSR 42] Habitable modules shall withstand applicable loads with the doors or hatches in the open and closed condition for the applicable ground and mission environments.
Habitable module structural integrity has to be maintained throughout all phases of service life for all hardware configurations, including conditions where the hatches and doors are opened or closed.
- c. [FSR 43] The minimum design and test factors of safety for habitable modules, doors, and hatches shall be as specified in Table 5, Minimum Design and Test Factors for Habitable Modules, Doors, and Hatches.