Fuel Economy Standards and Regula tions on Vehicle Inspection and 
Administration-dr aft version of article 4, 5, 6 and 7 
  
ARTICLE 4   
4.1Any passenger car (including sedans and st ation wagons) with a gasoline or diesel 
engine, m anufactured or im ported by the entity  shall com ply with the following 4.1.1 or 
4.1.2 regarding the standards governing the fu el econom y of vehicles (hereinafter 
referred to as the Fuel E conom y Standards): 
4.1.1 Fuel econom y testing is condu cted in acco rdance with the Federal Test Procedu re 
(FTP-75) of the United S tates: 
4.1.1.1 Fuel Econom y Standards 
Class of Vehicles Engine 
Displacem ent (cub ic centim eters)Fuel Economy Standards 
(kilom eters/liter) 
Below 1200 
Over 1200 to 1800 
Over 1800 to 2400 
Over 2400 to 3000 
Over 3000 to 3600 
Over 3600 to 4200 
Over 4200 to 5400 
Over 5400 16.2 
13.0 
11.4 
10.0 
9.2 
8.5 
7.2 
6.5 
 
4.1.1.2 The com bined fuel econom y value for passe nger cars (including sedans and station 
wagons) is calculated by the following equation: 
(km/L) economy  fuel Highway 45.0
(km/L) economy  fuel City 0.551      km/L) /liter, (kilomete r lue economy v a  fuel Combine d
+=
 
4.1.2 Fuel econom y testing is condu cted in accordance with Directive 19 99/100/EC and 
subsequent am endm ents: 
4.1.2.1 Fuel Econom y Standards 
Class of Vehicles Engine 
Displacem ent (cub ic centim eters)Fuel Economy Standards 
(kilom eters/liter) 
Below 1200 
Over 1200 to 1800 
Over 1800 to 2400 
Over 2400 to 3000 
Over 3000 to 3600 
Over 3600 to 4200 
Over 4200 to 5400 14.1 
11.3 
9.9 
8.7 
8.0 
7.4 
6.3 Over 5400 5.7 
 
4.1.2.2 The com bined fuel econom y value for passe nger cars (including sedans and station 
wagons) is calculated by the following equation: 
(km/L) economy  fuel urban  Extra(km) mileage urban test Extra
(km/L) economy  fuel Urban (km) mileage Urban test(km) mileage urban test Extra (km) mileage Urban test     km/L) /liter, (kilomete r lue economy v a  fuel Combine d
++=
 
4.2 Effective from  Jan.1, 2016 for manufactured  or im ported passenger car (including 
sedans and station wagons) with a gasoline or diesel engine by any entity to apply for 
vehicle type fuel economy certi ficates shall be tested in accordance with the test 
procedures prescribed in the European dire ctive 1999/100/E C and its subsequent revisions; 
effective from Jan. 1, 2017, the previous m entioned vehicles shall com ply with the 
following requirem ents: 
4.2.1 The average fuel econom y value of the m anufacturer sold vehicles shall be higher 
than the req uired av erage fuel econo my target value.  
4.2.2 The average fuel econom y limits correspondi ng to different vehicle types prescribed 
by the required average fuel econom y target valu e are as follows. But if the previous year 
sales of a brand by the vehicle entity were less than 300 units and th e brand’s world annual 
production is less than 10,000 units, a proposal for its fuel econom y improvem ent may be 
subm itted and being ap proved by th e central co mpetent authority to exe cute its 
improve ment project announced by the central competent authority, and not applicable for 
the average fuel economy lim its prescribed herein.
Class of vehicle reference m ass 
(kg)Average fuel econom y lim its 
(km/liter )
Below 850 19.2
Over 850 to 965 18.2
Over 965 to  17.4
Over 1080 to  16.6
Over 1190 to  15.7
Over 1305 to  15.0
Over 1420 to  14.1
Over 1530 to  13.3
Over 1640 to  12.5
Over 1760 to  11.8
Over 1870 to 1  11.2
Over 1980 to  10.5
Over 2100 to  9.7
Over 2210 to  9.3Over 2380 to  8.4
0WFS 7.2
 
4.2.3 The average fuel econom y value and averag e fuel economy target values prescribed 
in 4.2.1 shall be calculated by using the following for mula: 
4.2.3.1 Average fuel econom y value:  
 
i: manufactured or im ported ve hicle type’s sequence num ber. 
FCi: f uel econom y test value (km /liter) f or manufactured or im ported vehicle type i.  
Vi: sales number (units) of m anufactured or im ported vehicle type i.  
 
4.2.3.2 Average fuel econom y target value:  
 
i: manufactured or im ported ve hicle type’s sequence num ber. 
Ti: average fuel economy lim it (km/liter) of the m anufactured  or im ported vehicle type  
i in accordance with 4.2.2 of this Article.  
Vi: sales number (units) of m anufactured or im ported vehicle type i.  
 
4.2.4 The average fuel econom y values fo r each individual manufacturer shall b e 
calculated by the central com petent author ity by using the fuel econom y test values 
regis tered b y each ind ividual m anufacturer; d ifferent m anufacturers m ay be 
combined for their average fuel econom y value calculation, if being approved by the 
central com petent autho rity. 
4.2.5 Vehicle entities pursued 4.2.4 m ay consent to end their com bined calculation of 
average fuel econom y value; their previous  earn ed credits from exceed th e required 
target value m ay continue to be used  by the assigned m anufacturer through 
agreem ent; the deficiency from  unde r their target value shall be m anaged in 
accordan ce with 4.2.8 of this Article.  
4.2.6 The sam e vehicle entity m anufactured o r imported d ifferent brands o f vehicles, m ay 
calcu late the fuel econo my values s eparate ly for different brands, if being approved 
by the cen tral com petent autho rity. 
4.2.7 Vehicle entities with annual sales num ber over 100 units or values o ver 100 m illion 
NT dollars being approved by the central competent authority m ay use their annual 
sales num ber for the calculation of average fuel econom y value. If the calculated 
average fuel econom y is over the target valu e, the earned credits m ay be accum ulated 
for the calculation of next 3 year ’s av erage fuel econom y values.  
4.2.8 For vehicle entities m entioned in the prev ious paragraph 4.2.7, if their calculated fuel 
econom y values are under thei r required target values at specific year, their 
subsequent m arket sold vehicles m ust com ply with th e average fuel econ omy limits 
being defined by 4.2.2 of this Article until th e difference of calculated and target 
values are being com plemented or acquired fr om other entities’ credits to regain their 
average fuel econom y calculati on by their annual sales num bers.  4.2.9 Electric vehicle (sedans and station wa gons) sold by the vehicle entity, its fuel 
econom y test value m ay be m ultiplied by 2.5 as the fuel econ omy value and being 
used in the average fuel econom y calculation; the fuel economy test value for electric 
vehicle shall be rated by the com petent autho rity. 
4.3 The fuel econom y standards listed in Article 6 are applicable to ve hicles with im porter 
provided the listing of US certi ficate being classif ied as LDT model or with the EU 
certificate b eing classified as M1G model. 
 
ARTICLE 5  
5.1 Any m otorcycle m anufactured or im porte d by any entity shall com ply with the 
following Fuel Economy Standards: 
 
Class of Vehicles Engine 
Displacem ent (cub ic centim eters)Fuel Economy Standards
(kilom eter/liter) 
Below 50 
Over 50 to 100 
Over 100 to 150 
Over 150 to 250 
Over 250 to 500 
Over 500 to 750 
Over 750 to 1000 
Over 1000 to 1250  
Over 1250 to 1500  
Over 1500  48.2 
40.6 
38.0 
28.0 
21.1 
16.6 
15.8 
14.7 
13.1 
12.8 
 
5.2 The combined fuel econom y val ue for m otorcycles is calculated by the following 
equation: 
(km/L) economy  fuel speed Constant 0.4
(km/L) economy  fuel Urban 0.61     km/L) /liter, (kilomete r lue economy v a fuel Combine d
+=
 
5.3 Effective from  Jan.1, 2016 for manufactured or  imported motorcycles by any entity to 
apply for vehicle type fuel econom y certifi cates shall com ply with the following 
requirem ents: 
5.3.1 The average fuel econom y value of the m anufacturer sold vehicles shall be higher 
than the req uired av erage fuel econo my target value.  
5.3.2 The average fuel econom y limits correspondi ng to different vehicle types prescribed 
by the required average fuel econom y target value are as follows.  
Class of Vehicles Engine Average fuel econom y lim its Displacem ent (cub ic centim eters) (kilom eter/liter) 
Below 50  
Over 50 to 100  
Over 100 to 150  
Over 150 to 250  
Over 250 to 500  
Over 500 to 750  
Over 750 to 1000  
Over 1000 to 1250  
Over 1250 to 1500  
Over 1500  54.5 
46.7 
43.8 
31.0 
26.5 
18.7 
18.1 
15.8 
14.7 
14.1 
 
5.3.3 The average fuel econom y value and averag e fuel economy target values prescribed 
in 5.3.1 shall be calculated by using the following for mula: 
5.3.3.1 Average fuel econom y value:  
 
i: manufactured or im ported ve hicle type’s sequence num ber. 
FCi: f uel econom y test value (km /liter) f or manufactured or im ported vehicle type i.  
Vi: sales number (units) of m anufactured or im ported vehicle type i.  
5.3.3.2 Average fuel econom y target value:  
 
i: manufactured or im ported ve hicle type’s sequence num ber. 
Ti: average fuel economy lim it (km/liter) of the m anufactured  or im ported vehicle type  
i in accordance with 5.3.2 of this Article.  
Vi: sales number (units) of m anufactured or im ported vehicle type i.  
 
5.3.4 The calculation of average fuel econom y value and average target value for vehicle 
entity with com bined reporting or end of their combined repor ting, the qualification 
for using an nual average fuel econo my value calculation and  credit accu mulation, 
and the handling process for vehicle e ntities f ailed to com ply with the ir required 
annual average fuel econ omy target v alues sh all be in acco rdance with stip ulations in 
Artic le 4. 
5.3.5 Electric m otorcycle sold by th e vehicle entity, its fuel econom y test value may be 
multiplied b y 2.5 as th e fuel econ omy valu e and being u sed in the average fuel 
econom y calculation; the fuel economy test value for electric vehicle shall be rated 
by the com petent authority.  
 ARTICLE 6  
6.1 Any light-duty truck of a gross weight less than 2,500 ki logram s, commercial vehicle 
and passenger car (not seda ns or station wagons) with gasoline or diesel engine 
manufactured or im ported by the entity sh all comply with the following 6.1.1 or 6.1.2 
regarding standards governing fuel econom y of vehicles: 
6.1.1 Fuel econom y testing is condu cted in acco rdance with the Federal Test Procedu re 
(FTP-75) of the United S tates: 
6.1.1.1 Fuel Econom y Standards 
 
Class of Vehicles Engine 
Displacem ent (cub ic centim eters)Fuel Economy Standards
(kilom eters/liter) 
Below 1200 
Over 1200 to 1800 
Over 1800 to 2400 
Over 2400 to 3000 
Over 3000 to 3600 
Over 3600 to 4200 
Over 4200 to 5400 
Over 5400 10.9 
9.9 
8.9 
8.6 
7.6 
7.0 
6.7 
6.1 
 
6.1.1.2 The com bined fuel econom y value for light- duty trucks of a gross weight less than 
2,500 kilogram s, comme rcial vehicles and pa ssenger cars (not sedans or station 
wagons) is calculated by the following equation: 
(km/L) economy  fuel Highway 0.45
(km/L) economy  fuel City 0.551     km/L) /liter, (kilomete r lue economy v a  fuel Combine d
+=
 
6.1.2 Fuel econom y testing is condu cted in accordance with Directive 19 99/100/EC and 
subsequent am endm ents: 
6.1.2.1 Fuel Econom y Standards 
Class of Vehicles Engine 
Displacem ent (cub ic centim eters)Fuel Economy Standards 
(kilom eter/liter) 
Below 1200 
Over 1200 to 1800 
Over 1800 to 2400 
Over 2400 to 3000 
Over 3000 to 3600 
Over 3600 to 4200 
Over 4200 to 5400 
Over 5400 9.5 
8.6 
7.7 
7.5 
6.6 
6.1 
5.8 
5.3  
6.1.2.2 The com bined fuel econom y value for light- duty trucks of a gross weight less than 
2,500 kilogram s, comme rcial vehicles and pa ssenger cars (not sedans or station 
wagons) is calculated by the following equation: 
(km/L) economy  fuel urban  Extra(km) mileage urban test Extra
(km/L) economy  fuel Urban (km) mileage Urban test(km) mileage urban test Extra (km) mileage Urban test     km/L) /liter, (kilomete r lue economy v a  fuel Combine d
++=
 
6.2 Effective from  Jan.1, 2016 for manufactured or im ported light-duty truck of a gross 
weight less than 2,500 kilogram s, commercial vehicle and passenger car (not sedans or 
station wagons) with gasoline or diesel engine  by any entity to apply for vehicle type 
fuel economy certificates shall be tested in accordance with the test procedures 
prescribed in the Europe an directive 1999/100/E C and its subsequent revisions; 
effective from Jan. 1, 2017, the previous m entioned vehicles shall com ply with the 
following requirem ents: 
6.2.1 The average fuel econom y value of the m anufacturer sold vehicles shall be higher 
than the req uired av erage fuel econo my target value.  
6.2.2 The average fuel econom y limits correspondi ng to different vehicle types prescribed 
by the required average fuel econom y target value are as follows.  
Class of vehicle reference 
mass  
(kg) Average fuel econom y 
limits 
(km/liter ) 
Below 850  15.2 
Over 850 to 965  14.4 
Over 965 to 1080  13.7 
Over 1080 to 1190  13.1 
Over 1190 to 1305  12.4 
Over 1305 to 1420  11.9 
Over 1420 to 1530  11.1 
Over 1530 to 1640  10.5 
Over 1640 to 1760  9.9 
Over 1760 to 1870  9.3 
Over 1870 to 1980  8.8 
Over 1980 to 2100  8.3 
Over 2100 to 2210  7.7 
Over 2210 to 2380  7.3 
Over 2380 to 2610  6.6 
Over 2610  5.7 
 
6.2.3 The average fuel econom y value and averag e fuel economy target values prescribed 
in 6.2.1 shall be calculated by using the following for mula: 6.2.3.1 Average fuel econom y value:  
 
i: manufactured or im ported ve hicle type’s sequence num ber. 
FCi: f uel econom y test value (km /liter) f or manufactured or im ported vehicle type i.  
Vi: sales number (units) of m anufactured or im ported vehicle type i.  
6.2.3.2 Average fuel econom y target value:  
 
i: manufactured or im ported ve hicle type’s sequence num ber. 
Ti: average fuel economy lim it (km/liter) of the m anufactured  or im ported vehicle type  
i in accordance with 6.2.2 of this Article.  
Vi: sales number (units) of m anufactured or im ported vehicle type i.  
 
6.2.4 The calculation of average fuel econom y value and average target value for vehicle 
entity with com bined reporting or end of their combined reporti ng, the calculation of 
average fuel econom y value for different br ands under the same vehicle entity, the 
qualification  for using an nual average fuel econo my value calculation and  credit 
accum ulation, and the handling pro cess for vehicl e entities failed to com ply with the ir 
required ann ual average fuel economy target valu es shall be in accordan ce with 
stipulations in Article 4.  
6.2.5 Electric vehicle sold by the vehicle enti ty, its fuel economy test value m ay be 
multiplied b y 2.5 as the fuel economy valu e and being used in the averag e fuel 
econom y calculation; the fuel economy test va lue for electric vehi cle shall be rated 
by the com petent authority.  
 
ARTICLE 7  
Any light-duty truck of a gross weight less than 2,500 kilogram s, comme rcial vehicle and 
passenger car with gasoline or diesel engine m anufactured or  imported by the entity th at 
being tested in acco rdance with the U S FTP 75 test procedu res and found to be in 
compliance with the fuel econom y standards pr escribed in 4.1.1 of Article 4 or 6.1.1 of 
Article 6 of the May 7, 2010 revised version of  this regulation a nd obtained their fuel 
econom y certificates, m ay continue  to be sold till Dec. 31, 2015.