Yes, Japan Customs is known for being extremely thorough and strictly enforcing its regulations, particularly regarding prohibited substances and food items. In 2026, there is a "zero tolerance" policy for any form of cannabis, including CBD products that might be legal in other countries, and bringing these can result in immediate arrest and deportation. Japan also has very strict Quarantine laws; you are generally prohibited from bringing in any meat products (including jerky or vacuum-sealed snacks), fresh fruits, or vegetables without an official inspection certificate from the country of origin. For medications, you are allowed up to a two-month supply of standard over-the-counter drugs, but "narcotic" or "psychotropic" medications require a pre-approved Yunyu Kakunin-sho certificate. Customs officers frequently use sniffer dogs and X-ray technology for both checked and carry-on luggage. To speed up the process, travelers are encouraged to use the "Visit Japan Web" portal to complete their customs and immigration declarations digitally before landing, which generates a QR code that is scanned at the automated customs kiosks.