Regulations Governing Permission and Management of Homemade Hunting Guns and Spear Guns of Indigenous Peoples and Fishermen Article 14

Within one month following the day when the primary components of a homemade hunting gun is received as prescribed in the preceding article, the indigenous person shall have finished making the Type A homemade hunting gun, and submits it to the police department of the municipal or county (city) government whose jurisdiction covers the storage place to apply for inspection and registration.If, for some reason, the gun cannot be made within the time limit specified in the preceding paragraph, a written application may be submitted to the police department of the municipality or county (city) where the storage place is located for a one-time extension. The period extended to make the gun shall not exceed one month.
中文原文 原住民漁民自製獵槍魚槍許可及管理辦法第14條
原住民應於領取前條自製獵槍主要組成零件之翌日起一個月內,完成製造甲式自製獵槍,並持以向保管地之直轄市、縣(市)政府警察局申請查驗及列冊管理。
因故無法依前項規定於期限內完成製造者,得以書面向保管地之直轄市、縣(市)政府警察局申請延長製造期限一次,其延長期間不得逾一個月。

English translation for reference only; the Chinese text prevails. Not legal advice.