Reference Source

controlled substances - Schedule I-V

For controlled substances - Schedule I-V, carrier is USPS; restriction type is prohibited; scope is all mail - when distribution is unlawful; conditions is If the distribution of a controlled substance is unlawful under 21 U.S.C. Section 801-971 or implementing regulations, mailing is also unlawful under 18 U.S.C. Section 1716, recorded from its source on 2026-08-04.

Item category
controlled substances - Schedule I-V unconfirmed
Carrier
USPS our reading
Restriction type
prohibited our reading
Scope
all mail - when distribution is unlawful our reading
Conditions
If the distribution of a controlled substance is unlawful under 21 U.S.C. Section 801-971 or implementing regulations, mailing is also unlawful under 18 U.S.C. Section 1716 unconfirmed
Sourcepe.usps.com
Verified2026-08-04
Review by2027-08-04
DatasetPostal shipping restrictions by item category

Values marked unconfirmed are shown, but we could not tie them to the quote below: Conditions, Item category. Read the quote and judge them yourself.

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

the mailing of the substance is also unlawful under 18 U.S.C. § 1716.

pe.usps.com, retrieved 2026-08-04

Source

Last verified against source: 2026-08-04. Scheduled for re-check by: 2027-08-04. This page as Markdown · OKF concept · full dataset as JSON.