## Approve or reject an association

On the part’s **Procedures** section, each linked procedure has an **Approval** column with its current state. Approve or reject an association here.

- To approve a pending association, click **Approve**. The state changes to **Approved**.
- To reject a pending association, click **Reject**. The state changes to **Rejected**.
- To move an approved or rejected association back to **Pending**, click the reset control on that row.

Hovering an approved or rejected association shows who last updated it and when.

Only an approved association can start a build run when the **Require part-procedure relationship** setting is on. See [Block a run until the association is approved](https://docs.firstresonance.io/build-hardware/procedures/part-procedure-relationship#block-a-run-until-the-association-is-approved).

## Unlink a part from a procedure

To remove a part-procedure link, click **Remove** on the row for that link. The link is removed without a confirmation prompt. You can unlink from either surface:

- On the part’s **Procedures** section, click **Remove** on the row.
- On the procedure’s **Overview** tab, in the **Associated Parts** section, remove the part from the list.

## Block a run until the association is approved

To require an approved association before a run can be created, turn on the **Require part-procedure relationship** org setting. See [Configure run enforcement](https://docs.firstresonance.io/administration/production-settings/configure-run-enforcement). With the setting on, creating a build run for a part and procedure that have no approved association is blocked. In the run wizard, the **Part** step shows the message "The selected part must be associated with and approved for the selected procedure," and you can’t advance to **Review**. A missing, **Pending**, or **Rejected** association all block the run. This gate applies to build runs. It doesn’t apply when you attach an existing inventory item.

## Required and optional inspection procedures

When you link a part to an inspection procedure, the **Required** or **Optional** setting on the association controls whether an inspection run is created on receipt. It applies to inspection procedures only.

- **Required**: when you receive the part, ION creates an inspection run for it from the associated procedure.
- **Optional**: when you receive the part, ION creates no inspection run. You can still start an inspection manually.