Customs Protest Guide
CBP Form 19 protest planning with deadline control, legal-ground selection, and evidence discipline.
Protest viability depends on the entry facts, filing window, and legal theory asserted. A strong customs protest process starts with entry-level triage, then aligns documentation and argument structure before submission to reduce preventable denials and supplemental request cycles.
What a protest-ready file should include
- Clear entry identifiers and liquidation-status confirmation
- Specific legal/factual basis for relief tied to the transaction record
- Commercial documentation consistent across invoice, entry, and broker data
- Supporting calculations and timeline chronology where applicable
- Internal reviewer sign-off before filing transmission
Execution risks to avoid
- Waiting until late-stage review to confirm deadline posture
- Submitting broad arguments without entry-specific grounding
- Separating legal narrative from source records and calculation support
- Failing to maintain an auditable filing and follow-up timeline
Related guidance
Review Deadlines Center for timing controls andDocuments Library for file prep standards.