21 CFR § 1313.23 - Disposition of export declaration.
The exporter, or their agent, must submit an official record of the export declaration and/or required data concerning the export transaction to a customs officer at the port of export in compliance with all export control requirements of agencies with export control authorities under the Act or statutory authority other than the Controlled Substances Import and Export Act. An official record of the declaration (available from the DEA Diversion Control Division secure network application after the Administration issues a transaction identification number) must be maintained by the chemical exporter as the official record of the export in accordance with part 1310 of this chapter. Export declarations involving a listed chemical must be retained for two years.