River chief information boards are important markers under the "river chief system." Their main function is to disclose information such as basic river conditions, river chief responsibilities, and river management goals, making it convenient for the public to understand the river management situation and to supervise it. The information boards typically include the river name, the names and contact numbers of the river chief and river management personnel, a river system map, and a supervision hotline. Some boards also include a QR code for the public to quickly scan and obtain detailed information.
河長公示牌是「河長制」下的重要標示，主要功能是公開河道基本情況、河長職責、河道整治目標等資訊，方便公眾了解河道治理情況並進行監督。公示牌上通常包含河道名稱、河長及河道專管員姓名、聯絡電話、河道水系圖、監督電話等，有些還會設有 QR Code，讓民眾能快速掃描獲取詳細資訊。