The Organization law of the Directorate General of Highways Ministry of Transportation and Communications Article 3

The secondary authorities of the General Administration and their business are as follows:(1)Region Maintenance Offices: implementation of road maintenance and improvement matters.(2)Region Temporary Engineering Office: implementation of road construction and re-construction.(3)Region Motor Vehicles Offices: implementation of highway supervision and transportation management matters.
中文原文 交通部公路總局組織法第3條
本局之次級機關及其業務如下:
一、各區養護工程處:執行公路養護及改善事項。
二、各臨時工程處:執行公路新建及整建事項。
三、各區監理所:執行公路監理及運輸管理事項。

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