Written Scheme of Examination (WSE)
A written scheme set up for your specific installation, so you know exactly what must be examined, how, and when, and you can show it to HSE and your insurer.
What is a Written Scheme of Examination?
A Written Scheme of Examination (WSE) is a document required by the Pressure Systems Safety Regulations 2000 for most pressure systems. It identifies which parts of the system must be examined, the nature of each examination and how often it must happen. It must be drawn up or certified as suitable by a competent person.
Without a WSE, a pressure system should not be operated.
What it covers
- Air receivers and pressure vessels
- Gas cylinders, regulators and pressure relief devices
- Distribution manifolds
- Pipework and joints
- Isolation and non-return valves
- Pressure gauges, alarms and monitoring instruments
How we prepare it
- Survey: we visit and record every part of your system
- Drafting: we write the scheme around your installation, its safe operating limits and examination intervals
- Certification: the scheme is certified by a competent person
- Drawings: optional P&ID drawings tied to the scheme
Already have a WSE? Schemes must be reviewed when your system changes. We can review an existing scheme and update it.
Areas we cover
We provide Written Scheme of Examination from our offices in Glasgow and Darlington, across Glasgow, Edinburgh, Aberdeen and the North, Darlington and the North East, and the rest of the UK.
Written Scheme of Examination: common questions
Is a Written Scheme of Examination a legal requirement?
Yes, for most systems covered by PSSR 2000. The user or owner of the system must have one in place before it is operated.
Who can write a WSE?
It must be drawn up or certified as suitable by a competent person, who has the knowledge and experience to judge the system and its risks.
How long does a WSE last?
A WSE stays valid while the system stays the same. It should be reviewed regularly and whenever the system is modified, repaired or used differently.
Do I need a WSE for my air compressor?
Usually yes, if it has an air receiver. See air compressor and air receiver inspection.
How much does a Written Scheme of Examination cost?
It depends on the size and complexity of your system. Once we know what you have, usually after a short survey, we give you a fixed price.
How is the work priced?
We give you a fixed quote based on how much equipment you have and the size of your site, so you know the cost before we start.
Do you provide RAMS and follow our site rules?
Yes. We provide risk assessments and method statements (RAMS) before work starts, and we follow your site's induction, permit-to-work and safety rules.
Get a quote: Written Scheme of Examination
Call, email or send the form and we'll come back to you with a quote.
Glasgow G2 1BP
Dodsworth Street
Darlington DL1 2NG