About these tiers
These short guides explain what each tier means in plain language. They describe the rules and risk factors Ferretly uses so anyone can understand why a country or area lands in a given tier.
Notes that apply to all tiers
These tiers are based on publicly available U.S. and international designations plus Ferretly’s own overlays. Lists change; the underlying sources (OFAC, ITAR, FATF, 15 CFR 791.4, and U.S. entry proclamations) should be checked for the current status.
A country can only sit in one tier; the highest applicable tier is used.