Code of Federal Regulations Title 19. Customs Duties § 19.143.43 RLF eligibility criteria

(1) Operational on the ABI (see 19 CFR part 143, subpart A);

(2) Operational on the EIP prior to applying for RLF;  and

(3) Operational on the ACH (or any other CBP–approved method of electronic payment), for purposes of directing the electronic payment of duties, taxes and fees (see 19 CFR 24.25), 30 days before transmitting a RLF entry.