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Los Angeles Municipal Code Ch. IX Building Regulations

Los Angeles Municipal Code · 2026-09 edition · updated 2026-10-04 · Los Angeles

Cite as: Los Angeles Municipal Code Chapter IX · Text as of 2026-10-04

Number Title Number Title

1809.3 Stepped Foundations

Figure A Interceptor Terrace Figure B Diverter Terrace Figure C Berm Detail Figure D 20 Foot Horizontal Bench Figure E Untitled Figure F Drainage Dispersal Wall Figure G Plan View Inlet Structure, Plan View Outlet Structure Outlet Structure Sections A-A, B-B, C-C, and D-D, Grating Fastening Figure H Detail, Inlet Structure Section Y-Y Acceptable Span for Diaphragms (Based on Displacement Control Figure 88-A Concepts) 91.5.403.1.5 Stepped Footing 91.5.503.2.4 Openings in Horizontal Diaphragms

Exceptions & meaning →

91.5.602.10.6.1 Method ABW – Alternate Braced Wall Panel

91.5.602.10.6.2 Method PFH – Portal Frame with Hold-Downs at Garage Door Openings

91.5.602.10.6.4 Method CS-PF – Continuously Sheathed Portal Frame Construction

Drilling Rig Enclosed Derrick (Open Top) Inadequately Ventilated Figure 1 Substructure Drilling Rig, Unrestricted Ventilation in Substructure, Adequate Figure 2 Ventilation Inside Derrick Enclosure (Open Top and V-Door Area) Figure 3 Mud Tank or Open Sump in Unrestricted Ventilated Area Figure 4 Mud Tank or Open Sump in an Enclosure Figure 5 Vibrating Type Shale Shaker in Open Area Figure 6 Desander-Desilter in Freely Ventilated Area Figure 7 Flowing Well with Christmas Tree (Land Installation) Figure 8 Beam Pumping Well and Typical Wellhead Equipment Figure 9 Beam Pumping Well with Cellar and Typical Wellhead Equipment Figure 10 Flowing Well in an Enclosure Figure 11 Compressor or Pump in an Adequately Ventilated Building or Enclosure Figure 12 Compressor or Pump in an Inadequately Ventilated Building or Enclosure Figure 13 Gas Vent Figure 14 Oil-Gas Separation Vessel or Protected Fired Vessel Figure 15 Volatile Flammable Liquid Storage Tank Flammable Gas Operated Controls or Header or Manifolds in a Building or Figure 16 Enclosure Flammable Gas-blanketed Water-handling Equipment in Freely Ventilated Figure 17 Area Figure 18 Relief Valve Figure 19 Compressor or Pump in an Open Area or Freely Ventilated Shed Type Plan View Elevation

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