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20.08.040 CBC Section 903 amended — Automatic Sprinkler Systems. Section 903 of the California Building Code 2016 Edition, (24 C.C.R. Part 2), and including by reference the International Building Code, 2015 Edition is amended to read as shown in section 903 of the Pleasanton Fire Code (PMC Chapter 20.24). 20.08.050 CBC Section 904 amended — Alternative Automatic Fire-Extinguishing Systems. Section 904 of the California Building Code 2016 Edition, (24 C.C.R. Part 2), and including by reference the International Building Code, 2015 Edition is amended to read as shown in section 904 of the Pleasanton Fire Code (PMC Chapter 20.24). 20.08.050 CBC Section 1505.1 amended — Fire Classification. Table 1505.1 Minimum Roof Coverings Classification is deleted, and Section 1501.1 is amended to add the following paragraph to read as follows: Roof coverings shall be fire retardant minimum Class B or higher for all buildings regardless of type of construction. 20.08.070 CBC Section 1705.3 amended - Concrete Construction. Section 1705.3 is amended to read as follows: 1705.3 Concrete Construction. The special inspections and verifications for concrete construction shall be as required by this section and Table 1705.3. Exception: Special inspections shall not be required for isolated spread concrete footings of buildings three stories or less above grade plane that are fully supported on earth or rock, where the structural design of the footing is based on a specified compressive strength, f'c, no greater than 2,500 pound per square inch (psi) (17.2 Mpa). 20.08.080 CBC Section 1809.8 amended — Plain concrete footings. Section 1809.8 is amended to read as follows: 1809.8 Plain concrete footings. The edge thickness of plain concrete footings supporting walls of other than light-frame construction shall not be less than 8 inches (203mm) where placed on soil and in all cases, as a minimum, one No. 4 continuous rebar shall be placed at the top and at the bottom of all grade beams and spread footings. Exception: For plain concrete footings supporting Groups R-3 and one story Group U occupancies the edge thickness is permitted to be 6 inches (152mm), provided that the footing does not extend beyond a distance greater than the thickness of the footing on either side of the supported wall. In all cases, as a minimum, one No. 4 continuous rebar shall be placed at the top and at the bottom of all grade beams and spread footings.