Air Emission Standards of Mobile Source Article 9

The central competent authority in conjunction with the relevant agencies shall determine testing methods not designated in these Standards.
中文原文 移動污染源空氣污染物排放標準第9條
本標準未規定之測定方法,由中央主管機關會商有關機關認定之。

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