The Regulations Governing Permission and Management of Guns, Ammunition, Knives and Weapons Article 23
When the place where the knives owner’s household or principal business office is changed, information of the change along with the license and declaration form for address change shall be respectively submitted to the former and current local police stations to be forwarded to the municipal or county (city) police department to register the change within one month following the day when such change takes place.
中文原文 槍砲彈藥刀械許可及管理辦法第23條
持有人之戶籍所在地或團體之主事務所變更時，應於變更翌日起一個月內連同許可證、異動申報書，分別報請變更前、後之警察分駐（派出）所層轉直轄市、縣（市）警察局辦理異動登記。