A trench is 12 feet deep with vertical sides in Type B soil. The contractor wants to use a trench box. What is the minimum width required for the trench box under Cal/OSHA?

A construction site has employees working at heights of 12 feet above the ground on a steep-slope roof. According to Cal/OSHA fall protection requirements, what must be provided?

A construction crew is working outdoors in Fresno when the temperature reaches 97°F. Under Cal/OSHA heat illness prevention requirements, what is the minimum frequency for providing preventive cool-down rest periods?

A contractor is renovating a building built in 1975 and discovers material suspected to contain asbestos. According to Cal/OSHA regulations, what is the first required action?

Under Cal/OSHA regulations, what is the minimum frequency for reviewing and updating an Injury and Illness Prevention Program (IIPP)?

Calculate the minimum shade area required for 8 construction workers during a heat illness prevention cool-down period in California:

An employee working with lead-based paint removal has a blood lead level of 45 μg/dl. According to Cal/OSHA lead standards, what action must the employer take?

An IIPP must include procedures for investigating workplace accidents. According to Cal/OSHA, who is responsible for conducting these investigations?

A competent person inspecting a trench notices water seepage and minor soil movement. Under Cal/OSHA excavation standards, what action is required?

Calculate the required air changes per hour for a confined space with lead work under Cal/OSHA regulations. The space volume is 1,200 cubic feet and the exhaust fan moves 400 CFM. How many air changes per hour are being provided?

A roofing contractor is installing fall protection on a commercial building. Under Cal/OSHA Title 8, Section 1710, at what height does fall protection become mandatory for construction work?