The Installation / Commissioning / Decommissioning Record is the record you hand the customer or landlord when you install, commission or decommission a gas appliance or installation. It is your evidence that the work was done to standard and the installation was left safe, or, on a decommission, safely isolated.
When to use this one
- Installing a new gas appliance or a new run of pipework.
- Commissioning an appliance after work, checking it runs safely.
- Decommissioning, that is taking an appliance out or isolating it for good.
It is built on the same structure as the CP12, so it captures real data: the appliances, the structured gas supply checks and a clear safe-to-use call. If you are doing an annual landlord inspection, use the CP12 instead. If you are commissioning a whole new central heating system, the Central Heating Commissioning Certificate fits better. They all sit side by side, so pick whichever matches the job.
Start the record
You can start one two ways:
- From the job. Open the job from Jobs and use the Gas Certificates card. Starting it here links the client, the property and the engineer for you.
- From the Gas Certs page. Go to Gas Certs, tap New certificate, and pick Installation / Commissioning / Decommissioning Record.
Fill it in
Work down the form on site:
- Work type. Three quick choices. Pick the job action (installation, commissioning or decommissioning), the fuel (natural gas or LPG) and the use class (domestic, non-domestic, catering or laundry). The job action shapes the rest of the form.
- Work details. Set the date the work was carried out. The label tracks your job action, so it reads "Date of installation", "Date of commissioning" or "Date of decommissioning". The engineer's and the workspace's Gas Safe numbers are checked here, since every gas record carries them.
- Client and property. Link the client and the property, and choose who the record is issued to: the client, or a separate customer or landlord.
- Appliances. Add the appliances you worked on, with the safety, ventilation, flue flow and spillage checks and an overall result. On a decommissioning job you can leave this empty if you describe what was isolated under Work carried out instead.
- Gas supply and pipework. Work through the supply checks: emergency control valve, tightness test, let-by test, pipework condition and equipotential bonding.
- Work carried out. Describe what you did and anything still outstanding. On a decommission this is where you record what was capped, isolated or removed.
- Safety confirmation. Record whether the installation is safe to use, or, on a decommission, that it was left safe and isolated. Note whether warning labels were affixed, and cross-reference a warning notice if you issued one.
- Declaration. Record the overall result, add any comments, set a next inspection date if one applies (this is optional, and hidden on a decommission), and sign on screen. The customer can sign for receipt too, but they do not have to.
If an appliance comes up unsafe, Mucka offers to draft a Gas Warning Notice with the unsafe appliances already carried across, so you do not key it twice.
Everything saves as you go, so you can put your phone down mid job and pick up where you left off, even on a different device.
Approve and send
Tap Approve when it is done. Mucka shows you the outcome and asks you to confirm. Approving locks the record as a legal document and generates the PDF. After that it cannot be edited, only corrected.
Then tap Send. Mucka pre-fills the recipient and attaches the PDF. Check the message, then send.
Need to fix an approved record?
You cannot edit a locked record, but you can create a correction. That copies it into a fresh draft with a new serial number; once you approve the correction, the original is marked superseded and its PDF carries a "superseded" watermark. The original is never deleted.
Ask Mucka
You can ask Mucka to get one started for you:
"Start an installation record for the new boiler at 88 Bradford Road."
Mucka opens the draft and links it up, but it never approves or sends a record on its own. Filling in the checks, approving and sending are always your call.