Safe Pass study materials
Safe Pass study resources

Safe Pass key terms

Safe Pass · Get comfortable with the vocabulary.

hazard

Any source, situation or act with the potential to cause harm, injury or ill health. A hazard is the thing itself, not the likelihood of it causing damage.

Related: risk, risk assessment
risk

The combination of how likely a hazard is to cause harm and how severe that harm would be. Risk is judged before and after control measures are applied.

Related: hazard, risk assessment, residual risk
risk assessment

A careful examination of what could cause harm, who might be hurt and how, so that sensible precautions can be decided and recorded before work starts.

Related: hazard, risk, hierarchy of control
hierarchy of control

The order in which controls are chosen, from most to least reliable: eliminate the hazard, substitute it, use engineering controls, then administrative controls, with personal protective equipment last.

Related: risk assessment, residual risk, personal protective equipment
residual risk

The risk that remains once the chosen control measures are in place. It must still be low enough to allow the work to proceed safely.

Related: risk, hierarchy of control
method statement

A written document describing how a specific task will be carried out safely, in what sequence, with which equipment and controls, and who is responsible at each stage.

Related: risk assessment, permit to work, toolbox talk
permit to work

A formal written authorisation for high-risk work such as hot work, confined space entry or isolation of services, setting out the precautions required before, during and after the task.

Related: method statement, isolation, confined space
toolbox talk

A short, informal briefing given to the work team before a task, covering the hazards, the controls and any changes since the last briefing. Attendance is normally recorded.

Related: method statement, safety briefing
safety briefing

An induction or task briefing that explains site rules, emergency arrangements and the specific dangers of the area where a person will be working.

Related: toolbox talk, site induction
site induction

The compulsory introduction every worker receives before starting on a site, covering layout, hazards, welfare facilities, emergency procedures and site rules.

Related: safety briefing, assembly point
housekeeping

Keeping the workplace clean and orderly by clearing waste, stacking materials safely and keeping walkways and exits free. Good housekeeping removes many slips, trips and fire hazards.

Related: slip and trip hazard, welfare facilities
slip and trip hazard

Anything that could cause a person to lose footing or stumble, such as wet floors, trailing cables, loose materials, uneven ground or poor lighting.

Related: housekeeping, work at height
work at height

Work carried out anywhere a person could fall and be injured, including work above ground and work at ground level near an opening or edge.

Related: fall arrest, guardrail, scaffold
confined space

An enclosed or partly enclosed space where serious injury can arise from hazardous atmosphere, fire, explosion or drowning, and where entry and exit are difficult.

Related: permit to work, gas test
excavation

Any man-made cut, cavity or trench in the ground. Excavations can collapse without warning and may also contain buried services or build up dangerous gases.

Related: trench collapse, underground service
trench collapse

The sudden falling in of the sides of an excavation, which can bury or crush workers. Support, battering back the sides or a safe slope helps prevent it.

Related: excavation
underground service

Buried pipes or cables carrying electricity, gas, water or communications. They must be located and marked before digging, using plans and cable avoidance tools.

Related: excavation, isolation
personal protective equipment

Clothing or equipment worn or held to protect against a specific hazard, such as a hard hat, gloves, goggles or safety boots. It is a last line of defence, not a substitute for other controls.

Related: hierarchy of control, hard hat, respiratory protective equipment
hard hat

A helmet worn to protect the head from falling objects, knocks and some electrical contact. It must fit properly, be worn with the chin strap where required, and be replaced after impact or damage.

Related: personal protective equipment, dropped object
safety footwear

Boots or shoes with protective toe caps and, where needed, penetration-resistant soles and electrical or chemical resistance. They protect feet from crushing, cuts and punctures.

Related: personal protective equipment
respiratory protective equipment

Face masks or breathing apparatus that filter or supply clean air to protect the wearer from dust, fumes, vapours or oxygen-deficient atmospheres. It must be face-fit tested and correctly maintained.

Related: personal protective equipment, silica dust, confined space
silica dust

Fine dust produced when cutting, grinding or drilling concrete, stone or brick. Breathing it can cause serious lung disease, so dust must be controlled at source, usually with water or extraction.

Related: respiratory protective equipment, hierarchy of control
dropped object

Any item that falls from height and could strike a person below. Tools should be tethered, materials secured and exclusion zones set beneath overhead work.

Related: hard hat, work at height
noise exposure

The amount of sound a worker receives over a shift. Loud noise can cause permanent hearing loss, so levels are reduced at source and hearing protection is provided where needed.

Related: hearing protection, personal protective equipment
hearing protection

Earplugs or earmuffs worn to reduce the sound reaching the ear. They must be fitted correctly and used consistently in designated noisy areas.

Related: noise exposure
hazardous substance

Any material that can harm health, such as solvents, cement, paints or dusts. It should be identified from its label and safety data sheet before use.

Related: safety data sheet, coshh assessment
safety data sheet

A supplier document giving the hazards, safe handling, storage, first aid and emergency information for a chemical product. It supports the assessment of how the substance will be used.

Related: hazardous substance, coshh assessment
coshh assessment

A recorded assessment of the risks from a hazardous substance at work, covering exposure routes, controls, monitoring and health surveillance where required.

Related: hazardous substance, safety data sheet
isolation

Making equipment or services safe by switching off, locking off and proving dead, so that energy cannot be released while people work on them.

Related: lock-off tag, permit to work, underground service
lock-off tag

A personal lock and warning tag fitted to an isolation point so that only the person who applied it can restore the supply. It prevents unexpected start-up.

Related: isolation
guardrail

A rigid barrier fixed along an edge or opening to stop people falling. It usually has a top rail, intermediate rail and toe board.

Related: work at height, fall arrest
fall arrest

A system, such as a harness and lanyard, that stops a person who has already fallen. It limits the fall and the forces on the body but does not prevent the fall.

Related: work at height, guardrail, scaffold
scaffold

A temporary working platform erected to give access at height. It must be erected, altered and dismantled by competent people and inspected before first use and at regular intervals.

Related: work at height, fall arrest, competent person
competent person

Someone with the training, knowledge, experience and, where required, qualifications to carry out a task safely and to recognise when it is beyond their ability.

Related: scaffold, plant
plant

Powered machinery and equipment used on site, such as excavators, dumpers, telehandlers and generators. Plant must be suitable, maintained and operated only by trained people.

Related: competent person, pedestrian segregation, lifting operation
pedestrian segregation

Keeping people on foot physically separated from moving vehicles and plant, using barriers, marked walkways and controlled crossing points.

Related: plant, reversing vehicle
reversing vehicle

A vehicle or item of plant moving backwards, where the driver's view is restricted. Reversing should be avoided where possible and controlled with banksmen, alarms or cameras.

Related: pedestrian segregation, plant
lifting operation

Any work using a crane, hoist or other lifting equipment to raise or lower a load. It must be planned, supervised and kept clear of people.

Related: plant, exclusion zone
exclusion zone

A marked area from which people are kept out because of a hazard such as lifting, demolition, excavation or overhead work. Only authorised people may enter.

Related: lifting operation, dropped object
accident

An unplanned event that results in injury or ill health to a person. It must be reported and recorded so that causes can be found and prevented.

Related: near miss, accident book
near miss

An unplanned event that did not cause injury but had the potential to do so. Reporting near misses allows problems to be fixed before someone is hurt.

Related: accident, accident book
accident book

The record kept on site where accidents and dangerous occurrences are entered, usually the statutory accident book. Entries should be made as soon as possible after the event.

Related: accident, near miss
RIDDOR report

A report to the enforcing authority of specified serious workplace incidents, such as deaths, certain injuries, dangerous occurrences and some absences from work due to injury or disease.

Related: accident, reportable injury
reportable injury

An injury of a type or severity that must be reported to the enforcing authority, for example a fracture other than to fingers, thumbs or toes, or an injury causing more than seven days off work.

Related: RIDDOR report, accident
assembly point

The designated place where people gather after an evacuation so that they can be counted and accounted for. It should be clearly signed and known to everyone on site.

Related: evacuation, site induction
evacuation

Leaving the site or building quickly and by a safe route when an alarm sounds or when told to do so, without stopping to collect belongings.

Related: assembly point, fire extinguisher
fire extinguisher

A portable device for putting out a small fire in its early stages. It must match the class of fire, and people should only use one if trained and it is safe to do so.

Related: evacuation, fire warden
fire warden

A trained person responsible for checking that an area is clear during an evacuation, guiding people to the assembly point and reporting to the person in charge.

Related: evacuation, assembly point, fire extinguisher
welfare facilities

The toilets, washing, drinking water, rest areas and changing facilities that must be provided on site. They protect health and support good hygiene.

Related: housekeeping, site induction
gas test

A measurement of the atmosphere in a space before and during entry, checking oxygen level and flammable or toxic gases. Results decide whether entry is allowed and what breathing equipment is needed.

Related: confined space, permit to work, respiratory protective equipment