21 CFR 1313.14 - Distribution of import declaration.
The required three copies of the listed chemical import declaration (DEA Form 486) will be distributed as follows:
(a) Copy 1 shall be retained on file by the regulated person as the official record of import. Import declaration forms involving a List I chemical must be retained for four years; declaration forms for List II chemical must be retained for two years.
(b) Copy 2 is the Drug Enforcement Administration copy used to fulfill the notification requirements of Section 6053 of the Chemical Diversion and Trafficking Act of 1988, as specified in § 1313.12.
(c) Copy 3 shall be presented to the U.S. Customs Service along with the customs entry. If the import is a regulated transaction for which the 15-day advance notice requirement has been waived, the regulated person shall declare this information to the U.S. Customs Service Official by checking the block on the DEA Form 486 designated for this purpose.