OSHA 10 Credential Review: Construction Hazards, Workers' Rights & PPE

Why OSHA 10 Matters on the Job

The OSHA 10-Hour Construction Industry Outreach Training credential signals to every employer that you have a baseline understanding of construction site hazards and the rights that protect you. It is not a license, but it is widely recognized and, in some states and on many public projects, it is a condition of employment. The card is issued by the U.S. Department of Labor through authorized trainers and does not expire, though refresher training is encouraged. Your goal in this lesson is to master the topic areas covered in the course so you can answer scenario questions confidently and work safely from your first day on the job.

The Focus Four: Highest-Risk Hazard Categories

OSHA identifies four hazard categories that account for the majority of construction fatalities. Learn these cold.

Falls are the leading killer in construction. Any work surface 6 feet or more above a lower level triggers fall-protection requirements under the general construction standard. Acceptable controls include guardrail systems, personal fall-arrest systems (PFAS), and safety net systems. A personal fall-arrest system includes a full-body harness, a lanyard or self-retracting lifeline, and a secure anchor point rated to withstand the forces of a fall. In drywall and painting work you will encounter leading edges, open floor holes, scaffolding platforms, and extension ladders—all fall hazards.

Struck-by hazards occur when a worker is hit by a flying, falling, swinging, or rolling object. Wearing a hard hat and high-visibility clothing, and staying out of the swing radius of equipment, are the primary controls.

Caught-in/between hazards result from body parts or clothing being caught in, compressed by, or pulled into machinery or structural members. Keeping guards on tools and never reaching into moving parts are key controls.

Electrical hazards include contact with energized lines or equipment and improper use of extension cords. Ground-fault circuit interrupters (GFCIs) are required for all temporary power on construction sites. Assume every overhead line is energized until a qualified person verifies otherwise.

Scaffolding and Ladders

Scaffolding must be erected, moved, and dismantled under the supervision of a competent person. Platforms must be fully planked, guardrails installed on open sides 10 feet or more above a lower level, and access provided by a safe means such as a built-in ladder. Do not overload a scaffold beyond its rated capacity.

For ladders, use the right type for the job: stepladders for short tasks on level ground, extension ladders when working against a structure. Extension ladders must be set at a 4:1 angle (one foot out for every four feet of height) and extend at least 3 feet above the landing point. Secure the top and bottom when possible. Carry tools in a tool belt, not in your hands, when climbing.

Hazard Communication: GHS and Safety Data Sheets

The Globally Harmonized System (GHS) standardizes how chemical hazards are communicated. Every chemical container must have a GHS-compliant label with a product identifier, signal word (Danger or Warning), hazard and precautionary statements, pictograms, and supplier information. A Safety Data Sheet (SDS) must be available to workers for every hazardous chemical on the site. The SDS has 16 standardized sections; the most critical for daily use are Section 2 (Hazard Identification), Section 8 (Exposure Controls/PPE), and Section 14 (Transport).

In drywall and painting work you handle joint compound (silica dust hazard), latex and oil-based paints (VOC and flammability hazards), primers, and texture materials. Always read the SDS before using an unfamiliar product.

Personal Protective Equipment (PPE)

PPE is the last line of defense after engineering and administrative controls have been applied. Employers must conduct a PPE hazard assessment, select appropriate equipment, provide it at no cost for most types, and train workers on its use.

Common PPE in drywall and painting:

• Safety glasses or goggles: protect eyes from dust, splatter, and debris.
• Hard hat: protects against falling objects and head strikes.
• N95 respirator: filters at least 95% of airborne particles; required for tasks that generate respirable silica or nuisance dust when engineering controls alone are insufficient. Must be fit-tested for tight-fitting facepieces.
• Half-face air-purifying respirator (APF 10): used with appropriate cartridges for solvent vapors from oil-based paints and coatings.
• Cut-resistant gloves: for handling metal corner bead and sheet goods with sharp edges.
• Full-body harness: required component of a personal fall-arrest system when working at heights.

Never use PPE that is damaged, expired, or improperly fitted.

Fire Protection and Materials Handling

Oil-based paints and solvents are flammable. Store them in approved flammable-liquid storage cabinets, away from ignition sources, and ensure adequate ventilation. Know the locations of fire extinguishers and the PASS technique (Pull, Aim, Squeeze, Sweep). Drywall panels are heavy—a 5/8-inch 4×12 sheet can exceed 100 pounds. Use proper lifting mechanics (bend the knees, keep the load close) and a panel cart or partner for large sheets.

Workers' Rights and Employer Obligations

Under the OSH Act, you have three core rights:

1. The right to a safe workplace—your employer must provide conditions free from recognized serious hazards.

2. The right to know—you must have access to SDSs, exposure records, and information about hazards.

3. The right to act—you may refuse work you reasonably believe poses imminent danger, file a confidential complaint with OSHA, and participate in inspections without fear of retaliation. Retaliation for exercising these rights is prohibited by law.

Employers must provide required PPE, training in a language workers understand, and a written hazard communication program, among other obligations.

Answering OSHA 10 Scenario Questions

OSHA 10 scenarios test whether you can recognize a hazard, name the applicable topic area, identify the violation, and choose the correct control or response. Work through each question by (1) identifying the hazard category, (2) recalling the applicable rule, and (3) eliminating wrong answers that apply to different hazard types or exaggerate or understate the requirement.