To exempt floor assemblies that are immediately below service rooms from the fire-resistance rating requirements in Subsection 9.10.10. [specifically Sentences 184.108.40.206.(1), 220.127.116.11.(1) and 18.104.22.168.(1)], on the basis that the condition being guarded against is a fire originating in the service room and that floor assemblies are only rated for fire originating below them.