| Safety Factor | A safety factor compares the strength of a material or system to the load it is expected to carry. | Specifications & Standards |
| Safety-Monitoring System | A safety-monitoring system uses a competent person to watch for and warn workers about fall hazards. | Specifications & Standards |
| OSHA Occupational Safety and Health Administration | OSHA is the U.S. agency that sets and enforces workplace safety and health standards. | Specifications & Standards |
| SDS Safety Data Sheet | An SDS is a document that communicates hazards and safe handling information for a chemical product. | Specifications & Standards |
| Anchorage | An anchorage is a secure attachment point for fall protection, lifelines, lanyards, or structural support. | Specifications & Standards |
| ASTM ASTM International | ASTM is a standards organization that publishes technical standards used for materials, products, systems, and testing. | Specifications & Standards |
| Authorized Person | An authorized person is someone assigned or approved to perform a specific task or enter a specific area. | Specifications & Standards |
| Body Harness | A body harness is fall protection equipment worn to distribute fall arrest forces across the body. | Specifications & Standards |
| CE Continuing Education | CE is education completed to maintain knowledge, credentials, licenses, or professional development requirements. | Construction Administration |
| Certificate of Occupancy | A certificate of occupancy is an approval that allows a building or space to be occupied for its intended use. | Construction Administration |
| Circuit Breaker | A circuit breaker is an electrical safety device that opens a circuit when current exceeds a safe level. | Specifications & Standards |
| Commissioning | Commissioning is a quality-focused process used to verify that building systems perform as intended. | Specifications & Standards |
| Competent Person | A competent person is someone authorized to identify construction hazards and take corrective action. | Specifications & Standards |
| Confined Space | A confined space is an area large enough to enter but not designed for continuous occupancy and with limited entry or exit. | Specifications & Standards |
| Controlled Access Zone | A controlled access zone is an area where certain work is limited to authorized workers under controlled conditions. | Specifications & Standards |
| Daily Log | A daily log is a record of jobsite activity for a specific day. | Construction Administration |
| Deceleration Device | A deceleration device helps absorb energy and reduce forces when arresting a fall. | Specifications & Standards |
| Deficiency | A deficiency is work that does not meet contract requirements, quality standards, code, or approved submittals. | Specifications & Standards |
| Designated Person | A designated person is someone chosen by the employer or project team to carry out a specific duty. | Specifications & Standards |
| Division 28 | Division 28 is the MasterFormat division for electronic safety and security. | Specifications & Standards |
| Entry Permit | An entry permit documents required controls before workers enter a permit-required confined space. | Specifications & Standards |
| Fire Protection | Fire protection includes systems and assemblies intended to detect, suppress, contain, or resist fire. | Specifications & Standards |
| First Article Inspection | A first article inspection reviews the first completed item or installation before full production continues. | Specifications & Standards |
| Foreman | A foreman is a field leader who directs daily work for a crew or trade. | Construction Administration |
| Free Fall Distance | Free fall distance is the vertical distance a worker falls before a fall arrest system begins stopping the fall. | Specifications & Standards |
| GC General Contractor | A GC is the contractor responsible for managing construction work and coordinating subcontractors. | Construction Administration |
| General Conditions Costs | General conditions costs are project costs needed to manage and support the work but not tied to one specific trade item. | Estimating & Procurement |
| Glazing | Glazing is glass and related components used in windows, doors, storefronts, curtain walls, and other openings. | Specifications & Standards |
| Guardrail System | A guardrail system is a barrier used to keep workers from falling from edges, openings, platforms, or elevated work areas. | Specifications & Standards |
| Hazard Communication | Hazard communication is the system for informing workers about chemical hazards on the jobsite. | Specifications & Standards |
| Hazardous Atmosphere | A hazardous atmosphere is air that may be dangerous because of low oxygen, toxic gases, flammable vapors, or other harmful conditions. | Specifications & Standards |
| Hazardous Substance | A hazardous substance is a material that can harm people because of its chemical, physical, or health hazards. | Specifications & Standards |
| Hot Work Permit | A hot work permit authorizes work involving open flames, sparks, heat, welding, cutting, or grinding. | Specifications & Standards |
| Incident Report | An incident report documents a safety, property, environmental, or project event that needs formal recordkeeping. | Specifications & Standards |
| Inspection | An inspection is a review by an authority, consultant, owner, or project team to verify work against requirements. | Specifications & Standards |
| Issue | An issue is a tracked project item that needs review, action, or resolution. | Construction Administration |
| Issue Log | An issue log tracks open issues, responsibility, status, due dates, and resolution notes. | Construction Administration |
| JHA Job Hazard Analysis | A JHA is a safety planning tool that identifies job steps, hazards, and controls before work begins. | Specifications & Standards |
| Lanyard | A lanyard is a flexible connector used to attach a worker's harness to an anchorage, lifeline, or deceleration device. | Specifications & Standards |
| Laydown Area | A laydown area is a designated place on or near the site for storing materials, equipment, or prefabricated assemblies. | Construction Administration |
| Leading Edge | A leading edge is the advancing edge of a floor, roof, deck, or formwork that changes as work progresses. | Specifications & Standards |
| Lifeline | A lifeline is a line used as part of fall protection to connect workers to anchorage or fall arrest equipment. | Specifications & Standards |
| Lift Slab | Lift slab is a concrete construction method where slabs are cast near ground level and lifted into final position. | Specifications & Standards |
| Lockout | Lockout is the process of securing equipment so it cannot be energized or started during work. | Specifications & Standards |
| Maximum Intended Load | Maximum intended load is the total expected load applied to temporary equipment or a system during use. | Specifications & Standards |
| Mobilization | Mobilization is the process of preparing people, equipment, materials, and temporary facilities so construction work can begin. | Construction Administration |
| Mockup | A mockup is a sample installation built to demonstrate materials, workmanship, appearance, or performance before full production. | Specifications & Standards |
| Nonconformance | A nonconformance is a documented condition where work, materials, or processes do not meet specified requirements. | Specifications & Standards |
| Observation | An observation is a documented field note about work, quality, safety, progress, or a condition that needs attention. | Construction Administration |
| Permit-Required Confined Space | A permit-required confined space has serious hazards that require a controlled entry process. | Specifications & Standards |
| Personal Fall Arrest System | A personal fall arrest system is equipment designed to stop a worker after a fall begins. | Specifications & Standards |
| PPE Personal Protective Equipment | PPE is safety equipment worn to reduce exposure to hazards on a construction site. | Specifications & Standards |
| Preconstruction Meeting | A preconstruction meeting is held before construction starts to align the team on procedures, responsibilities, schedule, safety, and administration. | Construction Administration |
| Protective System | A protective system is a method used to protect workers from excavation cave-ins and related hazards. | Construction Administration |
| QA Quality Assurance | QA is the planned process for preventing quality problems before work is installed. | Construction Administration |
| QA/QC Quality Assurance / Quality Control | QA/QC refers to the processes used to plan, verify, inspect, and document construction quality. | Construction Administration |
| QC Quality Control | QC is the process of inspecting, testing, documenting, and correcting actual work to confirm it meets requirements. | Construction Administration |
| Qualified Person | A qualified person has the training, experience, or credentials needed to solve problems for a specific type of work. | Specifications & Standards |
| Rated Load | Rated load is the maximum load equipment or a component is designed to safely carry. | Specifications & Standards |
| Rejected Work | Rejected work is work that is not accepted because it does not conform to the contract documents. | Construction Administration |
| Rope Grab | A rope grab is a fall arrest device that moves along a lifeline and locks when a fall occurs. | Specifications & Standards |
| Scaffold | A scaffold is a temporary elevated platform and support structure used for workers, tools, or materials. | Construction Administration |
| Self-Retracting Lifeline | A self-retracting lifeline is a fall protection device that extends and retracts as a worker moves and locks during a fall. | Specifications & Standards |
| Site Instruction | A site instruction is a written direction about work or site activity issued during construction. | Construction Administration |
| Sloping | Sloping is an excavation protection method where sides are cut back at an angle to reduce cave-in risk. | Construction Administration |
| Special Inspection | Special inspection is code-required inspection for certain materials, systems, or work that need qualified observation or testing. | Specifications & Standards |
| Standard Test Method | A standard test method is a published procedure for performing a test in a consistent and repeatable way. | Specifications & Standards |
| Superintendent | A superintendent is the field leader responsible for coordinating day-to-day construction activities on site. | Construction Administration |
| Tabulated Data | Tabulated data is approved technical information used to select or design protective systems or equipment setups. | Specifications & Standards |
| Testing Agency | A testing agency is a firm hired to inspect, sample, test, or verify construction work and materials. | Specifications & Standards |
| Toeboard | A toeboard is a low barrier at an elevated edge used to help keep tools or materials from falling. | Specifications & Standards |
| Toolbox Talk | A toolbox talk is a short safety meeting focused on a specific hazard, task, or jobsite condition. | Specifications & Standards |
| Warning Line System | A warning line system is a temporary roof barrier used to warn workers that they are approaching a fall hazard. | Specifications & Standards |
| Witness Statement | A witness statement is a written account from someone who observed an event, condition, incident, or dispute. | Construction Administration |