# TAS Form 21 (/docs/form-guides/plumbing/tas/tas-form-21-completion)



Use this guide when you fill **Form 21: Certificate of Completion - Plumbing Work** in Tradie Forms. This is the permit authority's completion certificate, not the plumber's Form 71B standard of work certificate.

## Before you start [#before-you-start]

* Form 21 is the **permit authority's certificate of completion** when plumbing work is finished. It is different from Form 71B, where the plumber certifies standard of work.
* Have **owner or agent details**, **permit authority contact details**, **property address**, **permit numbers**, and **plumber licence details** ready.
* Check the current Tasmanian plumbing requirements before issuing the certificate.

## In the app [#in-the-app]

<span id="owner" />

## Owner [#owner]

Enter the **owner or agent name** and **address** shown in the To block at the top of the form.

Use **address search** on Solo or Team to find the Tasmanian address, or type street, suburb, and postcode manually.

<span id="permitAuthority" />

## Permit Authority [#permit-authority]

Enter the **permit authority name**, **address**, **phone**, **fax**, **licence number** (when applicable), and **email**.

Save these as a **saved detail** on Solo or Team to prefill on your next Form 21.

<span id="work" />

## Work [#work]

Select **Permit Work** or **Notifiable Work**, then enter the **property address** and **description of work**. Enter the **permit number** for permit work and the **associated special plumbing permit number** when applicable.

Use address search to fill Tasmanian suburb and postcode quickly, or type the address manually for rural or unusual sites.

<span id="plumber" />

## Plumber [#plumber]

Enter the **plumber name**, **class and category**, **address**, **phone**, **fax**, **licence number**, and **email address**.

Save plumber details as a **saved detail** on Solo or Team to prefill on your next Form 21.

<span id="certificate" />

## Certificate [#certificate]

Read the **certificate wording** shown for your work type. It follows the official PDF, including the instruction to delete the section that does not apply.

No fields are entered in this section. It helps you confirm the correct legal basis before sign-off.

<span id="signOff" />

## Sign-Off [#sign-off]

Enter the **permit authority print name**, **signature**, **date**, and **title**.

The **permit number** on page 2 of the PDF is filled from the permit number you entered in the Work section.

Sign only after checking the preview against the completed work.

<span id="after-export" />

### After download [#after-download]

* Check the owner or agent, site, work type, permit references, and plumber licence details against the permit file.
* Confirm the permit authority signatory, title, signature, and date are complete.
* Preview both PDF pages and confirm the permit number carries through to page 2.
* Check the current Tasmanian process for who receives the completed certificate.
* Keep a copy with the permit authority and plumber records you normally rely on.

<Cards className="docs-cards docs-cards-cols-2 my-6">
  <Card title="Open TAS Form 21" icon="hugeicons:play" href="/forms/tas-form-21-completion">
    Prepare the permit authority's completion certificate.
  </Card>

  <Card title="TAS Form 21 and Form 71B" icon="hugeicons:book-open" href="/resources/tas-form-21-vs-form-71b-plumbing-guide">
    See who completes each certificate and where it fits in the job.
  </Card>
</Cards>