NEBOSH EMC key terms

The structured set of policies, plans, procedures and records an organisation uses to manage its environmental performance, typically built on the Plan-Do-Check-Act cycle so that improvement is continuous rather than a one-off project.

A short public statement, signed by top management, that sets the organisation's overall environmental direction and commitments, such as preventing pollution and meeting compliance obligations. It provides the framework against which objectives and targets are set.

An element of an organisation's activities, products or services that interacts, or can interact, with the environment. Examples include emissions to air, water use, waste generation and noise. Aspects are the causes that the organisation can control or influence.

Any change to the environment, whether adverse or beneficial, wholly or partly resulting from the organisation's environmental aspects. Impacts are the effects, such as habitat loss or reduced local air quality, that follow from activities.

An aspect judged, using defined criteria, to have or potentially have one or more significant impacts. Organisations must control significant aspects, set objectives for them and consider them in emergency planning and monitoring.

The documented method used to decide which aspects matter most, usually combining the likelihood of an event with the severity of its consequence, and often adding regulatory, stakeholder or business criteria to rank aspects for action.

A simple scoring tool that rates how probable an environmental event is and how serious its consequence would be, then multiplies or ranks the two to give a risk score used to prioritise control measures.

A living document listing each identified aspect, the activity it comes from, its associated impacts, existing controls, its assessed significance and the owner responsible. It is reviewed when processes, materials or legislation change.

Considering environmental aspects across all stages of a product or service, from raw material extraction through design, production, use and end-of-life disposal, rather than only looking at what happens inside the organisation's fence line.

The combination of the likelihood of a hazardous event or condition occurring and the severity of the environmental harm it could cause, used to decide where controls and contingency resources are most needed.

The preferred order for reducing risk: eliminate the hazard, substitute it, use engineering controls, then administrative controls, and finally personal protective equipment. Higher options are more reliable because they do not depend on individual behaviour.

Using processes, practices, techniques, materials, products or energy to avoid, reduce or control the creation of pollutants or waste at source, including recycling, recovery and treatment, rather than dealing with harm after release.

The ranked order for managing waste: prevent or reduce generation first, then reuse, recycle, recover energy, and dispose only as a last resort. It guides choices because the higher options usually deliver greater environmental benefit.

The legal obligation on anyone producing, storing, transporting or disposing of controlled waste to take reasonable steps to prevent its escape and to ensure it is handled and transferred only to authorised persons with correct documentation.

The written record, required when controlled waste changes hands, describing the waste type, quantity, container and the parties involved. It provides an audit trail showing waste went to a properly authorised destination.

An economic model that keeps materials in use for as long as possible through repair, remanufacture and recycling, so that value is retained and reliance on virgin resources and landfill is reduced.

Meeting present needs without compromising the ability of future generations to meet theirs, balancing environmental protection with social wellbeing and economic prosperity rather than trading one off against the others.

A way of judging organisational performance across three dimensions, often summarised as people, planet and profit, so that environmental and social results are reported alongside financial results rather than treated as secondary.

Any legal requirement or other requirement an organisation must meet, such as permits, regulations, planning conditions or voluntary commitments it has signed up to. These must be identified, accessed and evaluated for relevance.

The periodic process of checking whether the organisation actually meets its compliance obligations, recording the findings, and acting on any gaps found, so that legal position is verified rather than assumed.

An authorisation from a regulator allowing a specified activity to operate subject to conditions, such as emission limits, monitoring and operating techniques, and which may be varied, enforced against or revoked.

The most effective and advanced stage in the development of activities and their methods of operation, which indicates the practical suitability of particular techniques for providing emission limits designed to prevent pollution.

The government body with legal power to grant permits, inspect sites, require information, serve notices and prosecute breaches of environmental law. In the UK, examples include the environment agencies and local authorities.

A formal instruction from a regulator requiring an operator to remedy a breach or prevent a specified event, with a deadline. Failure to comply can itself be an offence and may lead to further sanction.

A specific, measurable goal an organisation sets for itself in line with its environmental policy, such as reducing energy use per unit of output, which is then broken into targets, actions, responsibilities and timescales.

The action plan that turns objectives and targets into practical work, showing what will be done, by whom, with what resources and by when, and how completion and effectiveness will be verified.

A measurable value, such as tonnes of carbon dioxide per unit produced or litres of water per shift, used to track environmental performance over time, compare against targets and inform management decisions.

The planned collection of data on aspects, controls and performance, using calibrated equipment where required, so that trends can be detected, targets tracked and the effectiveness of controls confirmed with evidence.

Comparing an instrument's readings against a known reference and adjusting it as needed, so that monitoring data used for compliance, targets or decisions can be trusted and defended if challenged.

The recurring process of enhancing environmental performance, not merely maintaining it, by setting more demanding objectives, reviewing results and adjusting the management system to close gaps.

A periodic, top-management examination of the environmental management system to confirm it remains suitable, adequate and effective, considering audit results, compliance status, performance and changing circumstances, and deciding on actions.

An independent, documented check of whether the environmental management system conforms to planned arrangements and is properly implemented and maintained, producing findings that feed corrective action and management review.

Steps taken to remove the underlying cause of a detected nonconformity, so that it does not recur, as distinct from immediate containment or correction of the problem itself.

A failure to meet a requirement, whether set by the organisation itself, by its management system standard or by law. Nonconformities must be recorded, evaluated and, where significant, investigated for root cause.

The arrangements for identifying potential accidents and emergencies, such as spills or fires, planning how to respond to them, providing equipment and training, and testing the plans periodically with realistic exercises.

A documented procedure describing how a release of a polluting substance will be contained, absorbed, isolated from drains and reported, including who does what, where equipment is kept and how waste from clean-up is disposed of.

An unplanned event that has caused or could cause harm to the environment, such as a chemical spill reaching a watercourse, which must be controlled, reported internally and, where required, notified to the regulator.

The immediate actions taken when a pollutant escapes, including stopping the source, containing the spread, protecting receptors such as drains and watercourses, and notifying the regulator and affected neighbours.

Ensuring people whose work can create significant environmental impacts are trained and experienced enough to do it properly, and that everyone understands the policy, their role and the consequences of departing from procedures.

The person or group at the highest level of the organisation who directs and controls it, with authority to approve the environmental policy, provide resources and make decisions at management review.