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Subchapter 7. General Industry Safety Orders
Group 1. General Physical Conditions and Structures Orders
Article 3. Special Design Requirements
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§3241. Live Loads.

(a) The live loads for which each floor or portion thereof of a commercial or industrial building is or has been designed shall have such design live loads conspicuously posted by the owner in that part of each story in which they apply, using durable metal signs, and it shall be unlawful to remove or deface such notices. The occupant of the building shall be responsible for keeping the actual load below the allowable limits.

(Title 24, Part 2, Section 1607.3.5)

(b) The maximum weight of materials stored on building floors or load carrying platforms, except those built directly on the ground, shall not exceed their safe carrying capacity.

(c) Material, wherever stored, shall not create a hazard. It shall be limited in height and shall be piled, stacked, or racked in a manner designed to prevent it from tipping, falling, collapsing, rolling or spreading. Racks, bins, planks, sleepers, bars, strips, blocks, sheets, shall be used where necessary to make the piles stable.

(d) The buildings, structures, foundations, and fastenings of all prime movers, machines, and equipment shall be maintained to support safely and without dangerous vibration the loads imposed upon them.

(e) Storage racks shall be designed to safely support their intended loads and shall not be loaded in excess of their design capacity as recommended by the manufacturer.


Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.


1. Repealer and new section filed 2-18-75; effective thirtieth day thereafter (Register 75, No. 7).

2. Amendment filed 7-16-76; effective thirtieth day thereafter (Register 76, No. 29).

3. Repealer of subsection (l) and consecutive relettering of subsection (m) filed 1-23-81; effective thirtieth day thereafter (Register 81, No. 4).

4. Amendment filed 2-26-85; effective thirtieth day thereafter (Register 85, No. 9).

5. Repealer and new subsection (a), amendment of subsection (d) and new subsection (e) filed 7-11-2002; operative 8-10-2002 (Register 2002, No. 28).

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