28 C.F.R. § 8.18
As used in this subpart, the following terms shall have the meanings specified: Commercial fishing industry vessel means a vessel that:
(3) Commercially supplies, stores, refrigerates, or transports fish, fish products, or materials directly related to fishing or the preparation of fish to or from a fishing, fish processing, or fish tender vessel or fish processing facility.
Controlled substance has the meaning given in 21 U.S.C. 802(6).
Normal and customary manner means that inquiry suggested by particular facts and circumstances that would customarily be undertaken by a reasonably prudent individual in a like or similar situation. Actual knowledge of such facts and circumstances is unnecessary, and implied, imputed, or constructive knowledge is sufficient. An established norm, standard, or custom is persuasive but not conclusive or controlling in determining whether an owner acted in a normal and customary manner to ascertain how property would be used by another legally in possession of the property. The failure to act in a normal and customary manner as defined herein will result in the denial of a petition for expedited release of the property and is intended to have the desirable effect of inducing owners of the property to exercise greater care in transferring possession of their property.
Owner means one having a legal and possessory interest in the property seized for forfeiture. Even though one may hold primary and direct title to the property seized, such person may not have sufficient actual beneficial interest in the property to support a petition as owner if the facts indicate that another person had dominion and control over the property.
Personal use quantities means those amounts of controlled substances in possession in circumstances where there is no other evidence of an intent to distribute, or to facilitate the manufacturing, compounding, processing, delivering, importing, or exporting of any controlled substance.
(1) Evidence that possession of quantities of a controlled substance is for other than personal use may include, for example:
(2) Possession of a controlled substance shall be presumed to be for personal use when there are no indicia of illicit drug trafficking or distribution—such as, but not limited to, the factors listed above—and the amounts do not exceed the following quantities:
(ii) One gram of a mixture or substance containing a detectable amount of—
(3) The possession of a narcotic, a depressant, a stimulant, a hallucinogen, or a cannabis-controlled substance will be considered in excess of personal use quantities if the dosage unit amount possessed provides the same or greater equivalent efficacy as the quantities described in paragraph (e)(2) of this section.
Property means property subject to forfeiture under 21 U.S.C. 881(a) (4), (6), and (7); 19 U.S.C. 1595a; and 49 U.S.C. 80303.
Seizing agency means the federal agency that has seized the property or adopted the seizure of another agency and has the responsibility for administratively forfeiting the property;
Statutory rights or defenses to the forfeiture means all legal and equitable rights and remedies available to a claimant of property seized for forfeiture.