Local Government Act Article 29

In accordance with the legal authority and powers vested by law and with central government laws and regulations promulgated in accordance with law, governments of special municipality, county/city governments, and township/city offices shall formulate regulations for matters commissioned by a higher level of government.The regulations on commissioned matters shall be promulgated after they are submitted for approval to the commissioning agency. The provisions on the naming of self-government regulations shall apply mutatis mutandis to the naming of the regulations on commissioned matters.
中文原文 地方制度法第29條
直轄市政府、縣(市)政府、鄉(鎮、市)公所為辦理上級機關委辦事項,得依其法定職權或基於法律、中央法規之授權,訂定委辦規則。
委辦規則應函報委辦機關核定後發布之;其名稱準用自治規則之規定。

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