Section 30.244 - When must a petition for reopening be filed?(a) A petition for reopening to correct an error of fact or law in a decision or post-decision order may be filed at any time, but if a petition for reopening is filed by an interested party, or by BIA on behalf of an interested party, it must be filed within 1 year after the interested party's discovery of the alleged error.(b) If a petition for reopening to correct an error of fact or law in the original decision is filed before the deadline to file a petition for rehearing has passed, it will be treated as a petition for rehearing. 86 FR 72087 , Dec. 20, 2021