Regulations Governing Drug Abuse Urine Testing Operations Article 23
If the test consignor doesn't agree with the result of urine test, it may explain the reasons to request retest within fourteen days following receipt of test report.
中文原文 濫用藥物尿液檢驗作業準則第23條
委驗機構對尿液檢驗結果有疑義時，得於接獲檢驗報告後十四日內，敘明原因要求複驗。