NCC 2022 Volume One Section C: C1.1 Fire resistance of building elements per Specification C1.1 (FRL: structural adequacy/integrity/insulation in minutes). Building classifications: Class 1 (houses), Class 2 (apartments), Class 3 (residential other), Class 4 (dwelling in non-residential), Class 5 (office), Class 6 (retail), Class 7 (storage/car park), Class 8 (laboratory/factory), Class 9 (healthcare/assembly/aged care), Class 10 (non-habitable). Rise in storeys determines FRL requirements. Effective height >25m: sprinklered, additional smoke hazard management. Compartmentation: fire walls between classifications, 2-hr minimum for Class 9a (healthcare). Egress: max travel distance varies (20m single direction, 40m alternative routes). Performance solution: fire engineering analysis as alternative to Deemed-to-Satisfy.