OSHA 15-Hr Disaster Site Worker study plan

Define the disaster site worker's role and list the four hazard categories (physical, chemical, biological, ergonomic) with two concrete examples of each from disaster response work

Explain the difference between a disaster site and a routine construction site, naming at least three conditions that change hazard exposure

Identify the routes of entry for workplace hazards (inhalation, skin absorption, ingestion, injection) and match each to a disaster-site scenario

Describe the hierarchy of controls and rank controls for a debris-removal task from most to least effective

Summarize worker rights under OSHA, including the right to refuse imminently dangerous work and to request an inspection

Analyze structural, electrical, and utility hazards at a disaster site and state the safe approach distance or isolation step for each

Explain secondary and cascading hazards (aftershocks, unstable debris piles, compromised utilities) and describe how to reassess them after each shift change

Describe heat and cold stress recognition, including the early warning signs of heat exhaustion versus heat stroke

Outline the elements of a site-specific safety and health plan and explain who is responsible for each element

Apply the process for reporting an injury or near miss and explain why near-miss reporting is emphasized in disaster response

Match each body area to the required PPE for common disaster tasks (debris clearing, confined-space entry, floodwater cleanup, fire-ash cleanup)

Explain the levels of protective ensembles (A through D) and select the correct level for three given scenarios with justification

Describe how to inspect, don, doff, and store a hard hat, eye protection, hearing protection, and high-visibility garment

Compare glove materials and select the right glove for chemical, cut, puncture, and electrical exposures

Explain PPE limitations and failure modes, including heat burden, visibility loss, and dexterity reduction

Explain the difference between a respirator fit test and a user seal check, and describe when each is required

Identify the types of respirators used at disaster sites (N95 filtering facepiece, half-face and full-face APR, PAPR, supplied air) and state one appropriate and one inappropriate use for each

Describe respirator care, cleaning, storage, and the medical evaluation requirement before fit testing

Explain how air monitoring results drive PPE and respiratory selection decisions

Interpret a simple monitoring result and state whether it triggers upgrade, downgrade, or no change in protection

Describe the purpose of air monitoring and the difference between direct-reading instruments and laboratory sampling

Identify the instruments used to screen for oxygen deficiency, combustible gas, carbon monoxide, hydrogen sulfide, and particulates, and state what each reading means

Explain calibration, bump testing, and alarm set points for a multi-gas meter and why a pre-entry bump test matters

Describe confined-space atmospheric testing order (oxygen, flammables, toxics) and the rationale for that sequence

Explain how to interpret particulate readings and when they indicate a need for respiratory upgrade

Explain the purpose and required contents of a safety data sheet and locate the sections most relevant to disaster response decisions

Interpret hazard statements, pictograms, and signal words on a chemical label and state the action each implies

Describe how to read an exposure limit (PEL, TLV, IDLH) and explain what each value means for a worker decision

Identify common disaster-site chemical exposures (carbon monoxide, mold, asbestos in debris, lead paint dust, fuel vapors) and state the control for each

Explain the elements of a hazard communication program, including labeling of secondary containers and worker training requirements

Describe the purpose and layout of a site control zone system (hot, warm, cold) and assign three tasks to the correct zone

Explain the decontamination process for personnel and tools, including the order of doffing and the reason for each step

Describe safe work practices for debris handling, heavy equipment interfaces, and working near unstable structures

Explain the buddy system, communication methods, and emergency extraction procedures at a disaster site

Outline the process for establishing and communicating an emergency action plan, including assembly points and accounting for personnel

Integrate knowledge across all five domains by working through full scenario-based practice sets under timed conditions

Identify the two weakest domains from practice results and re-study the specific missed concepts

Recite from memory the key decision rules for ensemble levels, respirator selection, monitoring order, and zone entry

Explain how the domains connect, showing how a monitoring result drives PPE choice and zone control decisions

Build a personal one-page reference sheet of thresholds, definitions, and decision rules for final review