Hello, the classification method of the Trademark Office is consistent with the trademark classification in customs registration. They are both based on the Nice Classification and are universally accepted internationally. However, they are not universally applicable to all countries because the Nice Agreement is not global. Universal, there are currently more than 50 member countries, and hundreds of countries use the agreement's commodity classification method for international trademark registration. Most countries have adopted the Nice Agreement on International Classification for trademark registration. Only some countries still use their own classification, such as Iraq... Mr. Yu from Miranden Trademark and Patent Office answered the question, hoping to help you!