Change approvals in our monorepo are managed via [GitHub CODEOWNERS](https://help.github.com/articles/about-codeowners/) and are configured via the [`.github/CODEOWNERS`](../.github/CODEOWNERS) file.
Once a change has all of the required approvals, either the last approver or the PR author (if PR author has the project collaborator status)
should mark the PR with the `PR action: merge` label and the correct [target label](https://github.com/angular/angular/blob/master/docs/TRIAGE_AND_LABELS.md#pr-target).
This signals to the caretaker that the PR should be merged. See [merge instructions](CARETAKER.md).