IAAI-FIT study materials
IAAI-FIT study resources

IAAI-FIT key terms

IAAI-FIT · Get comfortable with the vocabulary.

Job Performance Requirement (JPR)

A standard's core requirement stating what a person must be able to do on the job, the conditions under which it is performed, and the measurable outcome that shows the task was done correctly.

Related: Performance Outcome, Cognitive and Psychomotor Skills, Authority Having Jurisdiction
Authority Having Jurisdiction (AHJ)

The organization, office, or individual responsible for approving equipment, installations, procedures, or qualifications and for enforcing the code or standard in a given jurisdiction.

Related: Job Performance Requirement (JPR), Certification vs. Accreditation
Cognitive and Psychomotor Skills

The mental abilities (analyzing, evaluating, deciding) and physical abilities (operating, demonstrating, performing) that a JPR pairs with a stated outcome so evaluators can judge competence.

Related: Job Performance Requirement (JPR), Performance Outcome
Performance Outcome

The observable, measurable result or product a candidate must produce to satisfy a JPR, such as a written plan, a completed inspection form, or a demonstrated operation.

Related: Job Performance Requirement (JPR), Cognitive and Psychomotor Skills
Level I vs. Level II Progression

The structure in which Level I addresses supervising a single unit or crew at a task, while Level II addresses managing multiple units, programs, or the broader organization across incidents and administrative functions.

Related: Job Performance Requirement (JPR), Span of Control
Span of Control

The number of subordinates or resources one supervisor can effectively direct; commonly kept to three to seven (optimally five) in incident operations and reflected in unit and division design.

Related: Level I vs. Level II Progression, Incident Action Plan
Incident Action Plan (IAP)

The document describing objectives, strategies, tactics, resource assignments, and safety considerations for an operational period; a supervisor may be required to develop or contribute to it.

Related: Span of Control, After-Action Review
After-Action Review (AAR)

A structured debrief after an incident, drill, or training event that compares intended objectives with actual results and identifies strengths, weaknesses, and corrective actions for future performance.

Related: Incident Action Plan (IAP), Training Needs Analysis
Training Needs Analysis

A systematic process of comparing required job competencies against current personnel performance to identify gaps and prioritize training, equipment, or policy changes.

Related: After-Action Review (AAR), Job Performance Requirement (JPR)
Standard Operating Procedure (SOP) / Guideline (SOG)

A written directive that prescribes how routine and emergency tasks are performed; a supervisor is typically required to develop, implement, and enforce compliance with such directives.

Related: Policy vs. Procedure, Span of Control
Policy vs. Procedure

A policy states the organization's intent or required outcome and is broad in scope; a procedure specifies the step-by-step method for achieving that intent and is narrower and more prescriptive.

Related: Standard Operating Procedure (SOP) / Guideline (SOG), Job Performance Requirement (JPR)
Personnel Evaluation and Corrective Action

The supervisory process of documenting performance against expectations, providing feedback, and applying progressive corrective measures, including counseling, improvement plans, and formal discipline when warranted.

Related: Training Needs Analysis, Standard Operating Procedure (SOP) / Guideline (SOG)
Budget and Resource Management

The supervisory function of preparing, justifying, monitoring, and adjusting a unit or program budget, including tracking expenditures and aligning spending with organizational priorities.

Related: Performance Outcome, Training Needs Analysis
Interagency and Intergovernmental Cooperation

Working with other departments, agencies, or jurisdictions through agreements, mutual aid, or unified command to coordinate resources, objectives, and communications during shared operations.

Related: Incident Action Plan (IAP), Span of Control
Certification vs. Accreditation

Certification confirms that an individual meets defined job performance requirements; accreditation confirms that an organization, program, or institution meets established quality standards for delivering that certification or education.

Related: Authority Having Jurisdiction (AHJ), Job Performance Requirement (JPR)
Scientific Method in Fire Investigation

A systematic process of recognizing a need, defining the problem, collecting data, analyzing it, developing and testing hypotheses, and selecting the most supportable explanation for a fire's origin and cause.

Related: Hypothesis Testing, Negative Corpus, Origin and Cause Determination
Origin and Cause Determination

The investigative conclusion identifying where a fire began (origin) and what brought the heat source, fuel, and oxygen together (cause), supported by evidence rather than assumption.

Related: Scientific Method in Fire Investigation, Fire Patterns, Hypothesis Testing
Fire Patterns

Visible or measurable physical effects of fire, heat, or smoke on materials, including charring, spalling, melting, and smoke deposits, interpreted to help establish the area of origin.

Related: Origin and Cause Determination, Arc Mapping, Fire Dynamics
Arc Mapping

A technique of documenting electrical arcing damage on wiring and mapping those locations as one line of evidence to help identify the area of origin, not to determine the cause by itself.

Related: Fire Patterns, Origin and Cause Determination
Negative Corpus

An unsupported practice of declaring a cause by eliminating all other possibilities without positive evidence; it is not accepted methodology and is a common source of wrongful conclusions.

Related: Hypothesis Testing, Scientific Method in Fire Investigation
Hypothesis Testing

The process of constructing possible explanations for a fire and comparing each against physical evidence and data, discarding those that cannot be supported and retaining the one with the greatest support.

Related: Scientific Method in Fire Investigation, Negative Corpus, Failure Analysis and Testing
Fire Dynamics

The study of how fires ignite, grow, spread, and decay, including heat release rate, ventilation, flashover, and smoke movement, used to interpret evidence and evaluate possible scenarios.

Related: Fire Patterns, Hypothesis Testing
Failure Analysis and Testing

Examination of failed components or systems, including laboratory testing or replication, to determine how and why a device or material performed as it did during a fire.

Related: Hypothesis Testing, Evidence Collection and Chain of Custody
Evidence Collection and Chain of Custody

The documented, unbroken record of who collected, handled, transferred, and stored physical evidence, preserving its integrity and admissibility from the scene through analysis and court.

Related: Failure Analysis and Testing, Scene Documentation
Scene Documentation

The systematic recording of a fire scene through notes, diagrams, photographs, video, and measurements, capturing conditions before disturbance and supporting later analysis and testimony.

Related: Evidence Collection and Chain of Custody, Fire Patterns
Expert Witness Testimony

Testimony in which a qualified investigator offers opinions based on specialized knowledge, applying reliable methods and sound reasoning to facts of the case rather than speculation.

Related: Scientific Method in Fire Investigation, Scene Documentation
Scene Safety and Hazard Assessment

Evaluating and controlling risks at an investigation scene, including structural instability, utilities, hazardous materials, and contamination, before and during examination.

Related: Scene Documentation, Personal Protective Equipment (PPE)
Personal Protective Equipment (PPE)

Specialized clothing and equipment worn to protect against hazards such as heat, smoke, chemicals, and biological contamination, selected according to the risks present in the work environment.

Related: Scene Safety and Hazard Assessment, Respiratory Protection
Respiratory Protection

Equipment and programs, including self-contained breathing apparatus and air-purifying respirators, that protect the wearer from airborne contaminants, with selection, fit testing, and medical clearance requirements.

Related: Personal Protective Equipment (PPE), Rehabilitation and Rehab Sector
Rehabilitation and Rehab Sector

A designated operational area or function providing rest, hydration, medical monitoring, and cooling or warming for personnel to reduce fatigue and heat-related illness during extended incidents.

Related: Respiratory Protection, Incident Safety Officer
Incident Safety Officer (ISO)

The member assigned to monitor conditions, practices, and hazards at an incident and to recommend or implement measures that improve responder safety, with authority to halt unsafe actions.

Related: Rehabilitation and Rehab Sector, Scene Safety and Hazard Assessment
Risk Management and Risk-Benefit Analysis

The disciplined evaluation of hazards against potential gains, guiding decisions about whether and how to commit resources, and how to reduce exposure while still accomplishing the objective.

Related: Incident Safety Officer (ISO), Span of Control
Standard Operating Procedure (SOP) / Guideline (SOG)

A written directive prescribing how routine and emergency tasks are performed; supervisors and safety officers develop, implement, and enforce compliance with these directives.

Related: Risk Management and Risk-Benefit Analysis, Incident Safety Officer (ISO)
Training and Skills Maintenance

The ongoing process of keeping personnel proficient in required job performance skills through drills, evaluations, and refresher instruction, with records documenting completion and competence.

Related: Training Needs Analysis, Job Performance Requirement (JPR)
Accident and Injury Investigation

A structured analysis of an incident, injury, or near miss that determines contributing factors, documents findings, and recommends corrective actions to prevent recurrence.

Related: After-Action Review (AAR), Risk Management and Risk-Benefit Analysis
Safety Program Administration

Managing the policies, training, inspections, recordkeeping, and reporting that make up an organization's occupational safety and health effort, including compliance with applicable regulations.

Related: Risk Management and Risk-Benefit Analysis, Accident and Injury Investigation
Communications and Interoperability

The ability of responders from different agencies or jurisdictions to exchange information effectively, including shared radio systems, plain-language protocols, and common terminology.

Related: Interagency and Intergovernmental Cooperation, Incident Action Plan (IAP)