For additional information, see the International Residential Code (IRC) Sections R105, N1107 and N1110, the International Building Code (IBC) Sections 105, 1107 and 1110, the International Plumbing Code (IPC) Sections 102 and 106.2, and the National Electrical Code NFPA 70 (NEC) Appendix H, Sections 80.9 and 80.19 (C). These codes are available on the Development Services Department home page under Current Codes.