Competence evidence for short-term agency staff
A worker may arrive for a two-day assignment with an agency profile and a certificate list. The host still has to decide what that person will actually do, what site information is needed and what supervision is available. The useful record is not simply that the worker has “training”; it shows the link between a specific task, relevant evidence and the decision to allocate work.
This guide concerns cross-sector, short-term agency assignments in Great Britain. It is separate from the England care-home before-shift guide, which addresses CQC-regulated care duties, and from a generic recruitment or right-to-work checklist. Health and Safety Executive guidance for agency and temporary workers explains that the supplier and end user should cooperate and communicate before work starts. The end user generally directs the day-to-day work and is well placed to manage the workplace risks. Exact legal and professional checks still depend on the sector and role.
Define the task before asking for certificates
Record the assignment, site, duties, equipment, shift, supervisor and any work the person must not perform. “Warehouse operative” or “maintenance cover” is too broad if the worker may use powered equipment, work at height or isolate plant. Identify what the host needs from the supplier: experience, training, licence or task-specific qualification where relevant, and any restrictions. Keep commercial booking details separate from the safety decision.
The supplier should receive enough information about the role and site hazards to propose a suitable person. The host should know what the supplier has actually verified. A copied certificate without a named worker, issue date or relevant scope may not resolve the question. The host must not assume that because the agency has used a worker at another customer, the person knows this workplace's controls.
Compare evidence with the assigned work
Check identity and role-relevant training or qualification evidence, then ask whether practical capability has been demonstrated for the actual task. Course attendance and operational competence are not the same. Some work may require a statutory licence or professional registration; verify under the applicable scheme. Other work may require local familiarisation, instruction and supervision even when the worker holds a valid external certificate.
The HSE guidance on supervision notes that new or inexperienced workers may need more supervision and that supervision can help judge whether training has been effective. The host should name the person who will observe initial work, answer questions and stop an unsafe activity. A red or green training-matrix cell cannot decide independently that an agency worker is ready for every task.
Give the information needed for this site
Brief the worker on relevant hazards, safe methods, emergency arrangements, incident reporting, welfare, site traffic and equipment restrictions. Check comprehension, especially where the person is unfamiliar with the workplace or needs language or accessibility support. The HSE's agency-worker guidance expects workers to cooperate with the supplier and end user and to participate in necessary health and safety instruction. Record who gave the briefing, what was covered and any questions or restrictions.
A generic induction video is not enough where the assigned task has a live hazard. If the job changes during the shift, compare the new work against the original evidence and briefing. A worker cleared for manual picking is not automatically authorised to operate a forklift or maintain a conveyor. Record the changed allocation and the decision maker.
Decide what can be done under supervision
Not every evidence gap has the same outcome. A missing mandatory licence can prevent the specific activity. Lack of local familiarity may be addressed through induction and close supervision. Uncertainty about a certificate's scope may require confirmation from the issuer or supplier. State the outcome as permitted tasks, restrictions, supervisor and review point. Avoid a blanket “approved agency worker” status that travels into another department without the context.
If the host cannot provide safe supervision, change the assignment. An urgent shift vacancy does not justify placing someone in an unfamiliar high-risk role. Tell the supplier precisely what is missing so it can propose an appropriate replacement or provide reliable evidence. Keep the decision fair and proportionate; do not collect unrelated personal data simply because a record system allows it.
Example: a replacement in a distribution centre
An agency replaces a familiar worker before a night shift. The replacement has warehouse experience but no evidence for the site's powered truck type. The shift manager assigns picking and packing after a site briefing, with a named supervisor, and excludes truck operation. The supplier is asked for any relevant equipment competence evidence, but the worker is not given keys in the meantime. The task allocation, briefing and restriction are passed to the next shift lead.
The result is a safe, narrower assignment rather than a failed binary check. If the role cannot be filled without truck operation, the host requests another worker instead of treating past warehouse work as authorisation.
Keep an evidence trail for the short assignment
Retain the task definition, information sent to the supplier, evidence received, site briefing, competence judgement, permitted work, supervision and any change. Note who made the decision and when. At the end of the assignment, record concerns or demonstrated capability that should inform a future booking, with appropriate privacy controls. Do not silently turn a one-site assessment into a universal worker credential.
For current-product discussion, see Complys UK training matrix software. This guide does not claim Complys verifies licences, makes an employment-status decision, assesses hands-on competence or authorises a worker to use equipment automatically.