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   (Added by Ord. No. 183,580, Eff. 7/11/15.)
   Section 3108 of the CBC is adopted by reference, except Section 3108.1 of the CBC is not adopted; and, in lieu, LAMC Subsection 91.3108.1 is added.  (Amended by Ord. No. 185,587, Eff. 7/16/18.)
91.3108.1.  General.  Towers shall be designed and constructed in accordance with the provisions of TIA-222.  For structural design purposes, telecommunication towers shall be considered to be a "Class III Structure" subject to an Importance Factor of 1.50, as set forth in Table 2-3, Importance Factors, of TIA-222.  Towers shall be designed for seismic loads; exceptions related to seismic design listed in Section 2.7.3 of TIA-222 shall not apply.  In Section of TIA 222, the horizontal extent of Topographic Category 2, escarpments, shall be 16 times the height of the escarpment.
   EXCEPTION: Single free-standing poles used to support antennas not greater than 75 feet (22.86 m), measured from the top of the pole to grade, shall not be required to be noncombustible. (Amended by Ord. No. 185,587, Eff. 7/16/18.)