An educational library of workplace documents — purpose, who completes them, when they are used, typical fields, common mistakes and how they connect. Linked to workplace safety, workplace training, occupations, industries and employment documents. Informational only — template examples, not legal advice or official documents; employers remain responsible and using a document does not guarantee compliance.
What a pressure system work permit is
A pressure system work permit is a controlled authorisation for work on systems holding gas, steam or liquid under pressure, confirming that the system has been depressurised, isolated, drained or vented as needed, and that residual stored energy cannot harm the people working on it. Sudden release of pressure can cause severe injury, so these systems are tightly controlled.
This page is an educational overview with a simplified example. It is not an official template, not jurisdiction-specific and not legal advice — the employer decides which pressure work needs a permit and what it must record.
Purpose
- Authorise pressure-system work only after it is depressurised and isolated.
- Confirm venting, draining and stored-energy controls.
- Set the safe limits and the order of breaking into the system.
- Record that pressure risk was assessed and controlled.
Who completes it
- An authorised issuer competent in pressure-system risk.
- The competent worker, who accepts the conditions.
- An isolating authority may be named for the isolations.
- The employer decides who is competent to isolate, issue and work.
When it is used
- Before breaking into or working on a system that holds pressure.
- When residual pressure or stored energy could be released.
- For a stated period, until the work is complete and the system is restored.
- Whenever the employer’s system designates the task as permit-controlled.
Typical fields
- Permit number, system, point of work and validity period.
- Depressurisation, venting, draining and isolation details.
- Confirmation that residual pressure is released and proved.
- Sequence for breaking into the system and any linked permits.
- Issuer and acceptor signatures, and return-to-service sign-off.
- Example fields only — adapt to the system and the applicable law.
Common mistakes
- Breaking into a system before residual pressure is released and proved.
- Isolating one point but missing a second feed or trapped pressure.
- No drain or vent, so liquid or gas is released unexpectedly.
- Restoring pressure before the work permit is closed and people are clear.
Document workflow
A pressure system work permit is typically raised under the permit to work system after a risk assessment, supported by an isolation permit and, where a system is opened, a line breaking permit. A gas work permit applies where the contents are flammable or toxic.
See the related documents below for what is commonly required before, used with and completed after a pressure system work permit.
Retention (high level)
Completed pressure-system permits are usually kept for a period afterwards as a record of how the pressure risk was controlled, in line with the employer’s obligations and data-protection duties. This page does not state a period — confirm with the applicable law and the official authority.
Completing and sharing as a PDF
Pressure-system permits are commonly completed, signed and stored as PDFs alongside the system records. Exporting to PDF supports the record; it does not make the permit official or guarantee compliance.
Employer checklist
- Define which pressure work needs a permit and who may carry it out.
- Ensure depressurisation, venting, draining and isolation are confirmed.
- Control the order of breaking in and the return to service.
- Keep completed permits and system records together as evidence.
Worker notes
- Do not break into a pressure system without a valid permit.
- Confirm the system is depressurised and proved before opening it.
- Stop and report any unexpected pressure, liquid or gas release.
Country considerations
Rules on pressure systems, examination and competence vary by country, and the official authority differs. This page is general and high-level — not a statement of any country’s law and not a guarantee of validity.
Confirm current requirements with the official authority for your country and a qualified professional.
Who is responsible
The employer is responsible for safe work on pressure systems, the competence of those involved, and compliance. This page is an educational overview with a template example; it does not authorise any work and does not transfer responsibility.
Export, edit and share documents
The documents, policies and templates this involves can be exported, edited, signed, stored and shared as PDFs with the HELPERG PDF Editor.
Free, printable HR & employment resources
Practical, ungated resources to put this into action — no signup.