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2. Re- roofing; 3. Resale of the dwelling unit; 4. Issuance of a building permit for alterations, repairs or additions in excess of $1,000. In the event of a resale of a dwelling unit, the seller shall be responsible to comply with this ordinance. Any real property professional representing the seller shall be required to notify the seller of seller's obligation to comply with this ordinance. The spark arrestor shall conform to the requirements specified in the CRC Section R1003.9.1. 20.10.100 CRC Section R403.1.3 amended — Seismic Reinforcing. Section R403.1.3 is amended to read as follows: R403.1.3 Seismic reinforcing. Concrete footings located in Seismic Design Categories Do, Di and 02, as established in Table R301.2(1), shall have minimum reinforcement of at least two continuous longitudinal reinforcing bars not smaller than No. 4 bars. Bottom reinforcement shall be located a minimum of 3 inches (76 mm) clear from the bottom of the footing. In Seismic Design Categories Do, Di and D2 where a construction joint is created between a concrete footing and a stem wall, a minimum of one No. 4 bar shall be installed at not more than 4 feet (1219 mm) on center. The vertical bar shall extend to 3 inches (76 mm) clear of the bottom of the footing, have a standard hook and extend a minimum of 14 inches (357 mm) into the stem wall. In Seismic Design Categories Do, Di and D2 where a grouted masonry stem wall is supported on a concrete footing and stem wall, a minimum of one No. 4 bar shall be installed at not more than 4 feet (1219 mm) on center. The vertical bar shall extend to 3 inches (76 mm) clear of the bottom of the footing and have a standard hook. In Seismic Design Categories Do, Di and D2, masonry stem walls without solid grout and vertical reinforcing are not permitted. Exception: In detached one- and two- family dwellings which are three stories or less in height and constructed with stud bearing walls, isolated plain concrete footings supporting columns or pedestals are permitted. 20.10.110 CRC Section F2502.2.2 amended — Decks Section R502.2.2 is amended to read as follows: R502.2.2 Decks. Where supported by attachment to an exterior wall, decks shall be positively anchored to the primary structure and designed for both vertical and lateral loads as applicable. Such attachment shall not be accomplished by the use of toenails or nails subject to withdrawal. Where positive connection to the primary building structure cannot be verified during inspection, decks shall be self- supporting. For exterior balconies with cantilevered framing members, connections to exterior walls or other framing members, shall be designed and constructed to resist uplift resulting from 45