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Air Emission Standards of Mobile Source
1.中華民國六十九年六月五日行政院衛生署（69）衛署環字第 281151 號
令訂定發布
2.中華民國七十二年三月十日行政院衛生署（72）衛署環字第 415344 號
令修正發布
3.中華民國七十三年五月八日行政院衛生署（73）衛署環字第 480979 號
令修正發布
4.中華民國七十六年五月十五日行政院衛生署（76）衛署環字第 663088
號令修正發布全文 10 條
5.中華民國七十七年三月九日行政院環境保護署（77）環署空字第 2355
號令修正發布第 2、9 條條文
6.中華民國八十年四月十五日行政院環境保護署（80）環署空字第 1166
號令修正發布第 5 條條文
7.中華民國八十一年四月十日行政院環境保護署（81）環署空字第 13471
號令修正發布第 1、2 條條文
8.中華民國八十一年七月二十七日行政院環境保護署（81）環署空字第 3
4226 號令修正發布第 2～5 條條文
9.中華民國八十三年九月一日行政院環境保護署（83）環署空字第 44168
號令修正發布第 2、3、4、5 條條文
10. 中華民國八十三年十二月十五日行政院環境保護署（83）環署空字第
61110 號令修正發布第 5 條條文
11. 中華民國八十四年五月二十二日行政院環境保護署（84）環署空字第
21993 號令修正發布第 6 條條文
12. 中華民國八十五年三月二十日行政院環境保護署（85）環署空字第
13518 號令修正發布第 3、5 條條文
13. 中華民國八十七年八月五日行政院環境保護署（87）環署空字第 004
8875 號令修正發布第 6 條條文
14. 中華民國八十八年二月二十四日行政院環境保護署（88）環署空字第
0009384 號令修正發布第 1、2 條條文
15. 中華民國九十年十二月二十六日行政院環境保護署（90）環署空字第
0082090 號令修正發布第 6 條條文
16. 中華民國九十一年二月二十日行政院環境保護署（91）環署空字第 0
910009395 號令修正發布第 5 條條文
17. 中華民國九十一年十月二日行政院環境保護署環署空字第 091006597
2 號令修正發布第 1 條條文
18. 中華民國九十一年十一月二十七日行政院環境保護署環署空字第 091
0082101 號令修正發布第 2 條條文
19. 中華民國九十二年十二月十日行政院環境保護署環署空字第 0920087
607 號令修正發布第 3、5、6 條條文
20. 中華民國九十四年七月二十二日行政院環境保護署環署空字第 09400
55895 號令修正發布第 6 條條文
21. 中華民國九十五年六月三十日行政院環境保護署環署空字第 0950050
901 號令修正發布第 5 條條文
22. 中華民國九十六年六月二十八日行政院環境保護署環署空字第 09600
47525 號令修正發布第 6 條條文
23. 中華民國九十八年十月二十九日行政院環境保護署環署空字第 09800
97793 號令修正發布第 5 條條文
24. 中華民國九十九年三月三十一日行政院環境保護署環署空字第 0990
026508 號令修正發布第 3、4 條條文
25. 中華民國一百零二年十月二十八日行政院環境保護署環署空字第 102
0091280 號令修正發布第 2、6、7 條條文
26. 中華民國一百零二年十二月十三日行政院環境保護署環署空字第 102
0107176 號令修正發布第 8 條條文；增訂第 9 條條文；原第 9、
10 條條文遞改為第 10、11 條條文；除已另定開始施行日期者外，
自發布日施行
27. 中華民國一百零三年三月二十一日行政院環境保護署環署空字第 103
0022417A 號令修正發布第 5 條條文
28. 中華民國一百零五年十二月二十七日行政院環境保護署環署空字第 1
050105276 號令修正發布第 3、5 條條文；並刪除第 9 條條文
29. 中華民國一百零六年四月二十七日行政院環境保護署環署空字第 106
0030141 號令修正發布第 8 條條文
30. 中華民國一百零八年六月十二日行政院環境保護署環署空字第 10800
41095 號令修正發布名稱及第 1、5 條條文
（原名稱：交通工具空氣污染物排放標準；新名稱：移動污染源空氣
污染物排放標準）
31. 中華民國一百零九年七月二十七日行政院環境保護署環署空字第 109
0055378 號令修正發布第 3、5 條條文
32. 中華民國一百十二年六月三十日行政院環境保護署環署空字第 11210
74384 號令修正發布全文 10 條；除另定施行日期者外，自一百十二
年七月一日施行
中華民國一百十二年八月十八日行政院院臺規字第 1121028221 號公
告第 2 條第 3 款、第 6 條、第 9 條所列屬「行政院環境保護
署」之權責事項，自一百十二年八月二十二日起改由「環境部」管轄資料來源：全國法規資料庫（ChOrder.json，版本 2026/7/24 上午 12:00:00）・政府資料開放授權
These Standards are determined pursuant to Paragraph 2 of Article 36 of the Air Pollution Control Act (hereinafter referred to as “this Act”).
1Terms used in these Standards are defined as follows:
2I. “Drive cycle testing” means use of a chassis dynamometer to simulate specific forms of driving cycle and measurement of air pollutants emitted from a vehicle’s exhaust pipe during the simulated driving cycle.
3II. “Idle testing” means measurement of the concentration of emitted pollutants from the exhaust pipe when a vehicle is idle.
4III. “Judgment by visual determination” means the use of visual methods to determine the concentration of particulate matter in air pollutants emitted by a transportation vehicle. This work shall be performed by personnel who have completed the central competent authority’s training for transportation vehicles and public or private premise exhaust smoke visual judgment personnel and hold a qualification certificate.
5IV. “New vehicle model certification” means the air pollutant emission review and testing performed after the manufacture or import of each vehicle model, and prior to sales or use.
6
7VI. “In-use vehicle testing” includes regular testing and non-regular testing. Regular testing means air pollutant emission testing performed during regular testing in accordance with Article 44 of this Act. Non-regular testing means provisional air pollutant emission testing performed when vehicles are in motion or at a stopping place in accordance with Article 45 of this Act.
8VII. “Mass production” means that a product is being formally manufactured for the purpose of sales or use in a production line in accordance with production drawings after completion of design and commercial realization.
9VIII. “Prototype vehicle” means a vehicle that is manufactured by hand or other non-production line method during the model design and development stage and after the determination of detailed specifications.
10IX. “Mass production vehicle” means a vehicle that is being formally manufactured for the purpose of sales or use in a production line in accordance with production drawings after completion of design and commercial realization.
11X. “Reference mass” means the curb weight of a motor vehicle plus a specific weight. The curb weight of a motor vehicle means the weight of the motor vehicle prior to loading with persons or cargo. The engine shall contain the designated lubricating oil, the radiator shall contain the designated coolant, the fuel tank shall contain the designated fuel, and the motor vehicle shall contain accessories (spare tire and tools) designated by the original manufacturer. The specific weight means 136 kg, in the case of the urban driving cycle (hereinafter referred to as FTP-75) in the test types under the US Federal Test Procedures, and 100 kg, in the case of the New European Driving Cycle (hereinafter referred to as NEDC) or the Worldwide Harmonized Light Vehicles Test Cycle (hereinafter referred to as WLTC).
12XI. “Model year” means the calendar year in which a vehicle manufacturer began producing the model in mass production.
13XII. “Alternative clean fuel” means a new formulation of gasoline, new formulation of diesel fuel, natural gas, LPG, hydrogen, methanol, ethanol or other fuel containing at least 85% alcohol.
Gasoline and clean alternative fuel engine exhaust emissions standards for Carbon monoxide (CO),Hydrocarbons (HC), Nitrogen oxides (NOx), Particulate matter (PM), and Particulate number (PN) derived from driving cycle testing and idle testing stipulated as the following:
Crankcase, fuel tank and carburetor hydrocarbon (HC) emission standards for gasoline and alternative clean fuel engine motor vehicles are stipulated in the following table:
The exhaust emissions standards of carbon monoxide (CO), hydrocarbons (HC), non-methane hydrocarbon (NMHC), nitrogen oxides (NOx), formaldehyde (HCHO), particulate matter (PM), particulate number (PN) and smoke for diesel and alternative clean-fuel engine motor vehicles measured by driving cycle testing, visual determination and instrumentation measurement are specified in the following table:
The exhaust emissions standards of carbon monoxide (CO), hydrocarbon (HC), nitrogen oxides (NOx) and particulate matter (PM) emitted by motorcycles measured by the driving cycle test, idle test, visual determination and instrumentation measurement are stipulated in the following table:
The emission standards for hydrocarbon (HC) from crankcase, fuel tank, and fuel supply system of motorcycles are stipulated in the following table:
The exhaust emission standards of carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), and particulate matter (PM) for trains and exhaust emission standards of particulate matter (PM) emitted by ships are stipulated in the following table:
The central competent authority in conjunction with the relevant agencies shall determine testing methods not designated in these Standards.
These Standards shall be enforced as of July 1, 2023, unless otherwise agreed upon separately.