Tariff reference › Chapter 29 › 2922.31.00.00
HTS 2922.31.00.00 — Amfepramone (INN), methadone (INN) and normethadone (INN); salts thereof
The current US import duty for Amfepramone (INN), methadone (INN) and normethadone (INN); salts thereof (HTS 2922.31.00.00) — the base rate, any Section 301/232/122 surcharge that applies, and what's changed recently.
Oxygen-function amino-compounds: › Amino-aldehydes, amino-ketones and amino-quinones, other than those containing more than one kind of oxygen function; salts thereof: › Amfepramone (INN), methadone (INN) and normethadone (INN); salts thereof
Current US duty rate
| Column 1 (General / MFN) | Free |
|---|---|
| Special (FTA programs) | — |
| Column 2 (other) | 15.4¢/kg + 50% |
No Chapter 99 (Section 301/232/122) cross-reference on this line; origin-specific surcharges may still apply — check the calculator.
Alert me when this code changes (free) See all recorded changes
Programmatic access: the full duty stack (base + surcharges + MPF/HMF for a given origin & value) is at /duty?code=2922.31.00.00&origin=&value=. Current as of USITC 2026HTSRev13 (synced 2026-07-29).