OSHA Disaster Site Worker study plan

List the major hazard classes found on disaster sites (structural, electrical, chemical, biological, physical, ergonomic) and give two concrete examples of each from a response scenario you describe yourself.

Explain the difference between a hazard assessment and ongoing hazard recognition, and describe when each is performed during a response.

Identify the four main routes of exposure (inhalation, skin absorption, ingestion, injection) and match each to a disaster-site example.

Sequence the steps of a site hazard assessment walkthrough, from size-up through zone establishment, without referencing any external checklist.

Define IDLH, PEL, and STEL, and explain in your own words why air monitoring drives respiratory protection decisions.

Compare air-purifying respirators and atmosphere-supplying respirators, and state the conditions under which an air-purifying respirator must not be used.

Explain assigned protection factors and use them to select an appropriate respirator class for a stated contaminant concentration above the PEL.

Describe how to perform user seal checks for tight-fitting respirators and list the conditions that disqualify a worker from tight-fitting use.

Outline a written respiratory protection program's required elements and explain what each element controls on a disaster site.

Interpret a hypothetical air-monitoring result (oxygen level, combustible gas reading, and a contaminant concentration) and state the immediate action it triggers.

Match each hazard class from week 1 to the PPE ensemble that controls it, including eye, face, hand, foot, and body protection.

Explain how PPE selection changes with hazard level and why a single ensemble cannot cover an entire response.

Describe the limitations of PPE (heat stress, mobility, visibility, communication) and propose a work-rest or rotation control for each limitation you list.

Outline PPE inspection, maintenance, storage, and disposal requirements, including when an item must be removed from service.

Explain the interaction between PPE and other controls in the hierarchy of controls, and give an example where PPE alone is the wrong primary control.

List the core elements of a site safety and health plan and explain the purpose of each element in a response setting.

Describe the Incident Command System structure, including the roles of the Safety Officer and the site safety and health supervisor, and how they interact.

Explain how the site safety and health plan is updated as conditions change, and who has authority to stop work.

Describe worker rights and employer responsibilities relevant to hazard reporting, training, and access to exposure and monitoring records.

Explain how to communicate a hazard finding up the chain of command and document it so the record is usable later.

Explain the purpose and sequence of decontamination, including the difference between gross and technical decontamination.

Describe the contamination reduction corridor layout and the function of each zone (hot, warm, cold).

Identify bloodborne pathogen exposure routes and the controls that apply on a disaster site, including universal precautions and sharps handling.

Describe post-exposure procedures after a bloodborne pathogen exposure, including reporting and medical evaluation steps.

Explain how heat, fatigue, and stress affect worker health on extended responses and name the signs that require intervention.

Re-derive the hazard inventory for a new scenario without notes, then compare it to your week 1 table and list every gap.

Explain the limitations of direct-reading instruments and when confirmatory sampling is needed.

Describe how to establish and adjust work zones based on monitoring results and changing conditions.

Explain the medical evaluation, fit testing, and training requirements that must be complete before a worker wears a respirator.

Identify common failure points in hazard recognition during the first hours of a response and describe a control for each.

Reconstruct the PPE selection matrix from memory and reconcile it against your week 3 version.

Explain the relationship between the site safety and health plan, the ICS Safety Officer, and the decontamination procedure as one linked system.

Describe how worker health surveillance, exposure records, and training records support a response and protect the worker afterward.

Identify the situations in which a worker should refuse a task or stop work, and explain the reporting path for each.

Write short explanations of ten key terms (for example, IDLH, APF, contamination reduction corridor, universal precautions) in your own words without notes.

Complete a full timed practice exam and score it by domain to identify remaining weak areas.

Review every missed item and write the underlying rule or concept it tested, not just the correct answer.

Re-explain the five highest-risk concepts from memory in writing, without notes.

Build a final one-page reference sheet of facts you repeatedly miss, limited to items you can verify.

Confirm logistics for exam day, including identification, scheduling, and what materials are permitted.