39 CFR 956.12: (Rule 12) Consequences for failure to comply with this part.

If the Hearing Official determines that a debtor has abandoned the right to a hearing, files their petition late without good cause, or files a withdrawal of the petition, administrative wage garnishment may be initiated. If the Hearing Official determines that the Postal Service fails to file the answer, files the answer late without good cause, or files a withdrawal of the debt determination, administrative wage garnishment may not be initiated. If either party fails to comply with this part or the Hearing Official's orders, the Hearing Official may take reasonable and proper action under the circumstances, including dismissing or granting the petition as appropriate.