StacksVerified U.S. regulatory reference

49 CFR §821.21

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Where a law judge or the Board intends to take official notice of a material fact not appearing in the evidence in the record, notice shall be given to all parties, who may within 10 days file a petition disputing that fact.