Subcontractor safety supervision on construction sites — document checks, Labour Code art. 208 and equipment admission

Short answer: both company and individual documents are checked. The company provides the signed article 208 agreement, a list of workers sent to the site, an occupational risk assessment for the work, a safe work method statement where required, and usually the liability insurance policy required by contract.

For each worker, check: a valid medical certificate from occupational health examinations covering the hazards of the job — especially work at height, noise or machine operation; initial and periodic OHS training; confirmation of the site health and safety plan briefing and site induction; and qualification certificates relevant to the tasks.

The certificates most often checked on Polish sites are UDT (Office of Technical Inspection) operator certificates for mobile elevating work platforms, cranes and forklifts, electrical qualification certificates, scaffold erector certificates, slinger and signaller certificates and confined space training. Each has a different expiry date, so the real challenge is not checking them on day one but tracking when they expire during the contract.

Short answer: a spreadsheet stores dates but does not remind anyone of them, does not link document scans to a person and does not show a worker's status at the moment they stand at the gate. With a dozen companies and hundreds of people rotating during a contract, retyping medical and training dates takes the safety team's evenings, and a single error lets someone onto a scaffold without a valid certificate.

Typical problems anyone who ran contractor supervision in a spreadsheet will recognise: several versions of the same file on different computers, no clarity about which document copy is current, a lower-tier subcontractor the main contractor learns about only after an accident, and documents emailed in that nobody had time to verify.

A digital subcontractor file solves this when three conditions are met: every document is assigned to a company and person with an expiry date, the system automatically notifies both the safety team and the subcontractor of approaching deadlines, and the admission status (admitted, conditional, not admitted) is visible on a phone at the gate. This is how the contractor management module in VIMS EHS software works, linked with training and qualifications.

Short answer: equipment brought by a contractor should pass the same gate as people — it is declared, checked and marked before use. Polish construction safety regulations require machinery and technical equipment to be kept in good technical condition and used according to the manufacturer's instructions, and this applies to every employer whose workers use it.

Many main contractors apply an equipment admission procedure: the subcontractor submits a list of equipment with documents (power tool test records, technical inspection documents for UDT-supervised equipment, declarations of conformity), and the coordinator or an appointed person checks visual condition and applies an admission mark.

A popular method is quarterly colour coding — coloured tape or a sticker by the plug changes colour each quarter. A tool without the current colour may not be used on site. This is an internal practice, not a legal requirement, but every foreman understands it. Colour coding works well with a QR code leading to the inspection history of that specific item in the equipment register.

Short answer: regulations do not give one test interval for all companies. The employer sets it based on manufacturer instructions, risk assessment and conditions of use, using standards on testing electrical equipment such as EN 50678 and EN 50699. On construction sites, where tools work in dust and moisture and suffer mechanical damage, intervals are usually shorter than in a workshop — which is why quarterly inspections are so common.

A periodic power tool test includes inspection of the housing, cable and plug and measurements — depending on protection class, among others protective conductor continuity and insulation resistance. It is performed by a person with suitable electrical qualifications and recorded in a test report. Regardless of periodic tests, the operator checks before each use that the cable and plug are undamaged.

A site distribution board powers the temporary site installation. Checks cover the enclosure and lock, circuit labelling, residual current device operation using the test button at the frequency set by the manufacturer, and periodic measurements of the installation including shock protection effectiveness by a qualified person. Each board should have a responsible person and the next measurement date in the register.

Short answer: in Poland a scaffold may be used only after acceptance by the site manager or an authorised person, confirmed by an entry in the site log or a handover record. Erection and dismantling are done by certified scaffold erectors according to the manufacturer's instructions or an individual design.

A scaffold handover record usually covers: location and type, the erecting company, intended use and permitted platform load, assessment of foundations, ties, bracing, platforms, guardrails and toe boards, lightning protection measurements where required, and signatures. Beyond handover, scaffolds are checked periodically and after any event that may affect stability — strong wind, heavy rain or a break in work.

A clear way to inform workers is a scaffold tag at the access point — green means safe to use, red means do not enter. A QR code on the tag can lead to the handover record and inspection history. Ladders brought by subcontractors are treated the same way: a damaged, homemade ladder or one without feet must not be admitted. Detailed criteria are in the guide to ladder inspections under EN 131.

Short answer: Polish construction safety regulations classify among particularly hazardous work, for example, work at height, in excavations deeper than 1.5 m, with hazardous materials and during structural assembly. For such work the site manager ensures direct supervision by an appointed person, and the contractor prepares a safe work method statement.

Many main contractors additionally require a written permit to work (PTW) for hot work, confined space entry and work on live installations. The permit defines scope, time, safeguards and authorised people, and closing it confirms the workplace is safe. See the guide to permits to work for high-risk tasks.

Immediately before starting, the subcontractor crew carries out a last minute risk assessment (LMRA) — a short list of questions about conditions at the work location. In VIMS EHS the permit to work takes the contractor from the subcontractor register, so at issue you see whether its workers have valid medicals and certificates, and the LMRA is completed on a phone at the workplace.

Short answer: admission on day one is only the start. Ongoing supervision includes regular safety walks and inspections, recording non-conformities against a specific company, issuing corrective instructions with deadlines and verifying completion.

Good practice is to let every worker on site — subcontractors included — report a hazard, such as a damaged cable or a removed guardrail, without creating an account. Scanning a code on the site information board and adding a photo is enough. This is how hazard reporting without login works in VIMS.

The data collected allows objective assessment of subcontractors: number of non-conformities, time to close them, near misses and accidents. This assessment helps choose companies for future contracts and supports the conversation with a subcontractor that repeats the same failings.