Ephedrine (293941) and pseudoephedrine (293942) are List I chemicals under the Controlled Substances Act. Importers must hold a DEA registration, file advance import declarations, and comply with annual import quotas set by DEA. Shipments without proper DEA authorization will be refused entry.

Caffeine (293930) is not a controlled substance and does not require a DEA permit. However, if it is imported for use as a food ingredient or dietary supplement component, FDA oversight applies, including facility registration and compliance with applicable food safety regulations. Classification remains under 293930 regardless of the intended end use.