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Introduction to OSHA
This chapter introduces the Occupational Safety and Health Administration (OSHA), the federal agency created to help ensure safe and healthful working conditions. You will learn why OSHA exists, what rights workers have, what responsibilities employers carry, how inspections and citations work, and how injuries and illnesses are recorded. Understanding this foundation helps every worker recognize their role in a strong safety culture.
Construction Hazards and the Focus Four
Construction is among the most dangerous industries, and most deaths trace back to four hazard categories known as the Focus Four: falls, struck-by, caught-in/between, and electrocution. This chapter explains how to recognize these hazards, along with excavation and confined-space dangers, and how the hierarchy of controls guides the safest response. Recognizing hazards early and controlling them at the source saves lives.
Fall Protection
Because falls are the leading cause of death in construction, fall protection is one of the most important topics you will study. This chapter covers when fall protection is required, the conventional systems used, and the safe use of scaffolds and ladders. Mastering these concepts protects you against the single deadliest hazard on the job site.
Electrical Safety and PPE
Electrocution is one of the Focus Four hazards, and electrical incidents can also cause severe burns and fires. This chapter explains how to control hazardous energy with lockout/tagout, protect against shock with GFCIs and grounding, work safely near power lines, and select the right personal protective equipment. Following these practices keeps workers safe from a hazard that offers little warning.
Health and Safety Programs
Not all job-site dangers cause immediate injury; many health hazards act slowly through exposure to chemicals, dust, noise, and heat. This chapter covers hazard communication, silica and respiratory protection, safe materials handling, and programs that protect worker health over time. Recognizing and controlling these exposures prevents illnesses that may take years to appear.
Practice by topic
Jump straight into free practice questions for any single OSHA 30 Construction content area.