Chapter 4123:1-3 - Construction
- Section 4123:1-3-01 - Scope and definitions
- Section 4123:1-3-02 - Temporary storage and disposal
- Section 4123:1-3-03 - Personal protective equipment
- Section 4123:1-3-04 - Floors, stairways, railing, overhead protection and guarding of open-sided floors, platforms and runways
- Section 4123:1-3-05 - Mechanical power transmission apparatus
- Section 4123:1-3-06 - Motor vehicles, mechanized equipment and marine operations
- Section 4123:1-3-07 - Cranes, hoists, and derricks
- Section 4123:1-3-08 - Ropes, chains and slings
- Section 4123:1-3-09 - Roofing devices
- Section 4123:1-3-10 - Scaffolding
- Section 4123:1-3-11 - Ladders
- Section 4123:1-3-12 - Portable explosive-actuated fastening tools
- Section 4123:1-3-13 - Trenches and excavations
- Section 4123:1-3-14 - Electrical conductors, wires and equipment
- Section 4123:1-3-15 - Explosives and blasting
- Section 4123:1-3-16 - Tunnels and shafts, caissons, cofferdams, and compressed air
- Section 4123:1-3-17 - Cutting and welding
- Section 4123:1-3-18 - Heating, ventilating and exhaust equipment
- Section 4123:1-3-19 - Demolition
- Section 4123:1-3-20 - Steel erection
- Section 4123:1-3-21 - Diving operations
- Section 4123:1-3-22 - Woodworking machines, power saws, and other tools and equipment
- Section 4123:1-3-23 - Helicopters
- Section 4123:1-3-24 - Roof car suspended platforms - construction