Topic · 8 courses

Trenches & Tight Spaces — Excavations; Confined Spaces in Construction (Subparts P, AA)

Permit spaces, attendants and entry supervisors, trenching, shafts and tunnels.

All Working at Heights — Fall Protection (Subpart M) 11 Cranes, Rigging & Lifting — Cranes and Derricks in Construction (Subpart CC) 12 Trenches & Tight Spaces — Excavations; Confined Spaces in Construction (Subparts P, AA) 8 Chemicals & HazMat — Hazard Communication; HAZWOPER (1926.59, 1926.65) 21 Health Hazards — Toxic and Hazardous Substances (Subpart Z) 21 Electricity & Tools — Electrical; Tools—Hand and Power (Subparts K, I) 15 Vehicles & Heavy Equipment — Motor Vehicles, Mechanized Equipment, and Marine Operations (Subpart O) 6 PPE, First Aid & Emergencies — Personal Protective and Life Saving Equipment (Subpart E) 10 Jobsite Basics — General Safety and Health Provisions (Subpart C) 9 OSHA Rules & Worker Rights — Inspections, Citations and Proposed Penalties (Part 1903) 7 Specialized Work — Concrete, Steel Erection, Demolition, Diving & More (Subparts Q–Y) 12 Working at Heights — Walking-Working Surfaces (Subpart D) 1 Lockout/Tagout & Confined Spaces — General Environmental Controls (Subpart J) 2 Fire Safety — Fire Protection (Subpart L) 1 Forklifts & Cranes — Materials Handling and Storage (Subpart N) 2 Health Hazards — Toxic and Hazardous Substances (Subpart Z) 4

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Trenches & Tight Spaces — Excavations; Confined Spaces in Construction (Subparts P, AA)

Permit spaces, attendants and entry supervisors, trenching, shafts and tunnels.

The cutterhead of a tunnel boring machine on a construction site

Jobsite Basics — General Safety and Health Provisions (Subpart C) Trenches & Tight Spaces — Excavations; Confined Spaces in Construction (Subparts P, AA)

Trabajos con aire comprimido en túneles y cajones

Learn the medical, compression, decompression, fire and emergency rules that protect you when you work in compressed air in a tunnel or caisson.

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Crews in hard hats at a tunnel portal with a yellow ventilation duct running inside

Jobsite Basics — General Safety and Health Provisions (Subpart C) Trenches & Tight Spaces — Excavations; Confined Spaces in Construction (Subparts P, AA)

Construcción subterránea, pozos y túneles

For tunnel, shaft and underground construction crews and supervisors: access and check-in/check-out, safety instruction, communications, self-rescuers and emergency provisions, gassy classifications, air monitoring, ventilation, fire prevention and ground support.

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A ladder leads down through a manhole into a void space on a ship

Specialized Work — Concrete, Steel Erection, Demolition, Diving & More (Subparts Q–Y) Trenches & Tight Spaces — Excavations; Confined Spaces in Construction (Subparts P, AA)

Espacios confinados y cerrados en astilleros

For shipyard employees who enter tanks, holds, voids and other confined or enclosed spaces: testing order (oxygen, flammability, toxicity), limits and warning labels, entrant training, rescue teams, cleaning and cold work, hot work certificates, and…

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A backhoe lowers a steel trench box into a trench

Trenches & Tight Spaces — Excavations; Confined Spaces in Construction (Subparts P, AA)

Excavation Competent Person (Trenching and Excavation)

Learn the competent person's duties in excavation work: daily inspections, soil classification, protective system selection and the site hazards you control.

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A welder in coveralls and a mask looks out through the round manway of a large vessel

Trenches & Tight Spaces — Excavations; Confined Spaces in Construction (Subparts P, AA)

Welding Cutting and Heating in Confined Spaces

Learn the ventilation, respirator, attendant, toxic-metal and fire-prevention rules that apply when you weld, cut or heat inside a confined space on a construction site.

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An attendant tends the line as an entrant in a respirator descends through a rescue tripod

Trenches & Tight Spaces — Excavations; Confined Spaces in Construction (Subparts P, AA)

Espacios confinados en la construcción

Para los trabajadores de la construcción que puedan entrar o estar presentes en un espacio confinado que requiera permiso: reconocer los espacios confinados y los que requieren permiso, verificar el permiso y realizar las pruebas antes de entrar, desempeñar las funciones de entrada y de atención, y conocer cómo funciona el rescate.

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A hand holding a portable gas detector beside its test station

Trenches & Tight Spaces — Excavations; Confined Spaces in Construction (Subparts P, AA)

Permit-Required Confined Space Entrant (General Industry)

For authorized entrants in general industry: recognize a permit space and a hazardous atmosphere, check the permit and testing before you go in, use your equipment, stay in contact with the attendant, and get out…

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Trenches & Tight Spaces — Excavations; Confined Spaces in Construction (Subparts P, AA)

Trenching and Excavation Safety for Workers (Caught-In/Between)

For workers who enter or work around trenches and excavations: when cave-in protection is required, how to get in and out safely, the hazards at the edge and in the hole, and what to do…

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