The Rules of Management for Motor Vehicle Accident Compensation Fund Article 6

When this Fund pays a compensation claim pursuant to Paragraph 3 of Article 11, Article 36 or Article 40, in addition to a legitimate receipt, the claimant shall submit a written consent in promise to assist in investigation of the automobile traffic accident and to transfer the claimant's right against the one liable for the damages.
中文原文 財團法人汽車交通事故特別補償基金管理辦法第6條
本基金依本法第十一條第三項、第三十六條或第四十條規定給付補償金時,除應取得請求權人合法之收據外,並應取得其書面同意,承諾將協助調查相關之汽車交通事故,以及移轉其對損害賠償義務人之權利。

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