§ 74-4.002. Amendments to CBC.

The 2016 California Building Code ("CBC") is amended by the changes, additions, and deletions set forth in this chapter and Division 72. Section numbers used below are those of the 2016 California Building Code.

(a)

CBC Chapter 1 (Scope and Administration) is amended by the provisions of Division 72 of this Code and as follows:

(1)

Sections 103, 109, 112, 113, 114, and 116 of CBC Chapter 1 are deleted.

(2)

In Section 105.2 (Work exempt from permit) of CBC Chapter 1, subsection 4 is amended to read:

4.

Retaining walls that are not more than 3 feet in height measured from the top of the footing to the top of the wall and that have a downward ground slope at the bottom of the retaining wall not exceeding 1(vertical):10(horizontal), unless supporting a surcharge or ground slope exceeding 1(vertical):2(horizontal) or impounding Class I, II, or III-a liquids.

(3)

Section 107.1 (Submittal Documents — General) of CBC Chapter 1 is amended by deleting the exception.

(4)

Section 107.2.1 (Information on construction documents) of CBC Chapter 1 is amended to read:

107.2.1 Information on Construction Documents. Construction documents shall include dimensions and shall be drawn to scale on suitable material. Electronic media documents may be submitted when approved in advance by the building official. Construction documents shall be of sufficient clarity to indicate the location, nature, and extent of the work proposed and to show in detail that it will conform to this code and all relevant laws, ordinances, rules, and regulations. The first sheet of each set of plans shall include contact information for the owner and the person or persons who prepared the plans. Plans shall include a plot plan showing all existing property lines labeled and fully dimensioned, the elevations of the top and toe of cuts and fills, and the location of the proposed building with distances to all property lines and to every existing building on the property. Instead of detailed specifications, the county building official may approve references on the plans to a specific section or part of this Code or other ordinances or laws.

(5)

Section 110.1 (Inspections — General) of CBC Chapter 1 is amended by adding the following to the end of that section:

At the time of first inspection by the county building official, a California licensed Land Surveyor or Civil Engineer shall certify in writing that the structure is placed according to the approved set of plans. The written certification must include the site address and permit number. This requirement does not apply to alterations or repairs to existing structures that do not affect the exterior limits of the existing structures.

(b)

Section 907.2.11.9 (Existing Group R Occupancies) of CBC Chapter 9 (Fire Protection Systems) is amended to read:

907.2.11.9 Existing Group R Occupancies. In existing flat roof buildings, the installation of a smoke detector that complies with California Residential Code Section R314.6 shall be required when a pitched roof is added on top of the existing flat roof and the solid sheathing of the flat roof is not removed.

(c)

Section 1406.5 is added to Section 1406 (Combustible Materials on the Exterior Side of Exterior Walls) of CBC Chapter 14 (Exterior Walls), to read:

1406.5 Wood shakes or shingles. Wood shakes or shingles used for exterior wall covering shall be fire treated unless there is a minimum of 10 feet from the exterior wall (including shakes or shingles) to the property line of all sides, except for any sides of exterior walls facing the street.

(d)

In Section 1705.3 (Concrete construction) of CBC Chapter 17 (Special Inspections and Tests), Exception 1 is amended to read:

1.

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 of no greater than 2,500 pound per square inch (psi) (17.2 Mpa).

(e)

Section 1809.8 (Plain concrete footings) of CBC Chapter 18 (Soils and Foundations) is deleted.

(f)

Section 1810.3.9.3 (Placement of reinforcement) of CBC Chapter 18 (Soils and Foundations) is amended by deleting Exception 3.

(g)

Section 1906 (Structural Plain Concrete) of CBC Chapter 19 (Concrete) is deleted.

(h)

Section 1907.1 (Minimum Slab Provisions — General) of CBC Chapter 19 (Concrete) is amended by adding the following sentence to that section:

Slabs shall have 6-inch by 6-inch by 10-gauge wire mesh or equal at mid-height.

(i)

Appendix C and Appendix I of the CBC are incorporated into the County building code. Appendix A, Appendix B, Appendix D, Appendix E, Appendix F, Appendix G, Appendix H, Appendix J, Appendix K, Appendix L, and Appendix M of the CBC are excluded from the County building code.

(Ord. No. 2016-22, § III, 11-15-16)