# Federal — what a buyer may purchase in 30 days (9 grams, of which 7.5 by mail) — Pseudoephedrine purchase limits: federal gram limits and stricter state rules

For Federal, jurisdiction is Federal — what a buyer may purchase in 30 days (9 grams, of which 7.5 by mail); 30-day limit is more than 9 grams of ephedrine base, pseudoephedrine base, or phenylpropanolamine base; prescription or other restriction is of such 9 grams, not more than 7.5 grams may be imported by means of shipping through any private or commercial carrier or the Postal Service; statute or regulation citation is 21 U.S.C. 844(a), recorded from its source on 2026-08-19.

- **Jurisdiction:** Federal — what a buyer may purchase in 30 days (9 grams, of which 7.5 by mail) _(our reading, not quoted from the source)_
- **30-day limit:** more than 9 grams of ephedrine base, pseudoephedrine base, or phenylpropanolamine base _(verified: appears in the quote below)_
- **Prescription or other restriction:** of such 9 grams, not more than 7.5 grams may be imported by means of shipping through any private or commercial carrier or the Postal Service _(verified: appears in the quote below)_
- **Statute or regulation citation:** 21 U.S.C. 844(a) _(our reading, not quoted from the source)_

## What the source says

> It shall be unlawful for any person to knowingly or intentionally purchase at retail during a 30 day period more than 9 grams of ephedrine base, pseudoephedrine base, or phenylpropanolamine base in a scheduled listed chemical product, except that, of such 9 grams, not more than 7.5 grams may be imported by means of shipping through any private or commercial carrier or the Postal Service.

## Source

- https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title21-section844&num=0&edition=prelim

Last verified: 2026-08-19. Review by: 2027-08-19.
Part of [Pseudoephedrine purchase limits: federal gram limits and stricter state rules](https://referencesource.org/pseudoephedrine-purchase-limits-by-state/).