Around here we never use NFPA 101 but it has come to my attention that NFPA 101 requires a 2 1/4" min clearance from the wall to the handrail. Is this a type-o with NFPA? We have project in another state where the State Fire Marshall uses NFPA 101 and the local town uses IBC. I know about the 2012 IBC section regarding such conflicts. IBC only references NFPA 101 in Section 1028. Who has authority?