Eugenio,77
mail@toyota-club.net
© Toyota-Club.Net Oct 2010 - Jan 2022
The designation of Japanese domestic market cars contains the code indicated compliance with local emission regulations, vehicle category and engine type.
The first Japanese emission regulations (for CO) appeared in 1966. During 1975-78 the standards for three types of emissions (CO, CH, NOx) were adopted, which were in effect for more than twenty years with minimal corrections. Considerably more strong regulations were consistently adopted in 2000 and 2005. Throughout 2000s there was a transition to more advanced test cycles. Since 2000 regulations imply several additional grades of emissions reduction, which give some financial benefits to the car owners.
Note, that the directly comparison of Japanese and European standard values is not possible, because they are based on a completely different test cycles until the very end of 2010s.
Emission regulations (g/km) for passenger cars with gasoline engines (pre-2018).
Regulations |
Year | CO | HC | NOx | Cycle | Sticker |
Japan 1978 | 1978 | 2.700 | 0.390 | 0.480 | - | - |
Japan 2000 | 2000 | 0.670 | 0.080 | 0.080 | 10-15 | - |
Japan 2000+25% | 2000 | 0.670 | 0.060 | 0.060 | 10-15 | |
Japan 2000+50% | 2000 | 0.670 | 0.040 | 0.040 | 10-15 | |
Japan 2000+75% | 2000 | 0.670 | 0.020 | 0.020 | 10-15 | |
Japan 2005 | 2005 | 1.150 | 0.050 | 0.050 | 10-15+11 | - |
Japan 2005+50% (ULEV) | 2005 | 1.150 | 0.025 | 0.025 | 10-15+11 | |
Japan 2005+75% (SULEV) | 2005 | 1.150 | 0.013 | 0.013 | 10-15+11 | |
Japan 2005 | 2008 | 1.150 | 0.050 | 0.050 | 10-15+JC08 | - |
Japan 2005+50% (ULEV) | 2008 | 1.150 | 0.025 | 0.025 | 10-15+JC08 | |
Japan 2005+75% (SULEV) | 2008 | 1.150 | 0.013 | 0.013 | 10-15+JC08 | |
Japan 2009 | 2011 | 1.150 | 0.050 | 0.050 | JC08 | - |
In 2009, the standards for diesel models and gasoline models with direct fuel injection were modified.
In 2018, another major revision of emission standards was carried out and new codes were introduced.
Average emission regulations for cars and trucks (beyond 2018)
In 2019, MLIT and METI issued a new fuel economy standards for passenger vehicles starting in MY2030.
Since 2021, Japan adopted WLTC (Worldwide Harmonized Light Vehicle Test Cycle), with the exception of the extremely high speed driving part.
3-digit compliance code (since Japan 2005 regs)
1st symbol |
Emission regulation |
Low emissions certification |
Symbol |
2005 | No Passenger cars, light, medium and heavy cargo | A |
50% Passenger cars, light and medium cargo | C |
75% Passenger cars, light and medium cargo | D |
NOx 10% + PM 10% Heavy cargo | B |
NOx 10% Heavy cargo | N |
PM 10% Heavy cargo | P |
2006 2-wheel and special vehicles | No | J |
2007 | No Motorcycles, special vehicles and light cargo | E |
50% Light truck | G |
75% Light truck | H |
2008 Special vehicles | No | K |
2009
Direct injection gasoline vehicles with NOx catalyst and diesel vehicles (passenger cars, light and medium cargo (2.5-3.5 t), some heavy cargo (above 12 t) |
No exc. diesel PHP | L |
No diesel PHP | F |
50% | M |
75% | R |
10% | Q |
2010 Diesel vehicles (1.7-2.5 t medium cargo, 3.5-12 t heavy cargo) | No | S |
10% | T |
2011 Special vehicles | No | U |
2012 Special vehicles | No | W |
2013 Special vehicles | No | X |
2014 Diesel special vehicles | No | Y |
Not subject to regulation | | Z |
2016 Diesel heavy cargo, motorcycles | No | 2 |
2018 Passenger cars, light cargo, medium and light trucks | No |
3 |
25% | 4 |
50% | 5 |
75% | 6 |
No PHP cars | 7 |
2020 | No Motorcycles | 8 |
2nd symbol |
Fuel | Hybrid version | Symbol |
Gasoline / LPG | Yes | A |
No | B |
Diesel | Yes | C |
No | D |
Yes (heavy cargo) | J |
No (heavy cargo) | K |
Yes (5% heavy cargo) | N |
No (5% heavy cargo) | P |
Yes (10% heavy cargo) | Q |
No (10% heavy cargo) | R |
Yes (15% heavy cargo) | S |
No (15% heavy cargo) | T |
CNG | Yes | E |
No | F |
Methanol | Yes | G |
No | H |
Gasoline+Electric / LPG+Electric | Yes | L |
Diesel+Electric | Yes | M |
Other | Yes | Y |
No | Z |
3rd symbol |
Usage | Weight etc. | Symbol |
Passenger car |
except diesel regulations '2005 | A |
diesel reg. '2005 (vehicle weight below 1265 kg) | B |
diesel reg. '2005 (vehicle weight above 1265 kg) | C |
Cargo | mini truck | D |
vehicle total weight below 1.7 t | E |
vehicle total weight 1.7-3.5 t | F |
vehicle total weight above 3.5 t | G |
2-wheel etc. | type 1 moto-bicycle | H |
type 2 moto-bicycle | J |
light motorcycle | K |
small motorcycle | L |
Special vehicle | output 19-37 kW | M |
output 37-56 kW | N |
output 56-75 kW | P |
output 75-130 kW | R |
output 130-560 kW | S |
output 19-560 kW (gasoline/LPG limited) | T |
Ultra-compact mobility | Cargo | Y |
Passenger car | Z |
Examples of compliance codes
Type |
Year |
Fuel |
Emission level |
NOx emission |
PM emission |
CO2 emission |
- | -1975 | Gasoline | | 2.1800 | 0 | 2.32 |
A | 1975 | Gasoline | | 1.2000 | 0 | 2.32 |
B | 1976 | Gasoline | | 0.6000 | 0 | 2.32 |
C | 1976 | Gasoline | | 0.6000 | 0 | 2.32 |
E | 1978/1998 | Gasoline | meets 1978 reg. | 0.2500 | 0 | 2.32 |
GF | 1978/1998 | Gasoline | meets 1998 regs (idle emissions) | 0.2500 | 0 | 2.32 |
HK | 1978/1998 | Gasoline | meets 1998 regs (idle emissions, hybrids) | 0.1250 | 0 | 2.32 |
GH | 2000 | Gasoline | meets 2000 regs | 0.0800 | 0 | 2.32 |
HN | 2000 | Gasoline | meets 2000 regs (hybrids) | 0.0400 | 0 | 2.32 |
TA | 2000 | Gasoline | ☆ (25% lower than 2000 regs) | 0.0600 | 0 | 2.32 |
XA | 2000 | Gasoline | ☆ (25% lower than 2000 regs, hybrids) | 0.0600 | 0 | 2.32 |
LA | 2000 | Gasoline | ☆☆ (50% lower than 2000 regs) | 0.0400 | 0 | 2.32 |
YA | 2000 | Gasoline | ☆☆ (50% lower than 2000 regs, hybrids) | 0.0400 | 0 | 2.32 |
UA | 2000 | Gasoline | ☆☆☆ (75% lower than 2000 regs) | 0.0200 | 0 | 2.32 |
ZA | 2000 | Gasoline | ☆☆☆ (75% lower than 2000 regs, hybrids) | 0.0200 | 0 | 2.32 |
ABA | 2005 | Gasoline | meets 2005 regs | 0.0500 | 0 | 2.32 |
AAA | 2005 | Gasoline | | 0.0250 | 0 | 2.32 |
ALA | 2005 | Gasoline | | 0.0125 | 0 | 2.32 |
CAA | 2005 | Gasoline | New ☆☆☆ | 0.0250 | 0 | 2.32 |
CBA | 2005 | Gasoline | New ☆☆☆ (50% lower than 2005 regs) | 0.0250 | 0 | 2.32 |
CLA | 2005 | Gasoline | New ☆☆☆ | 0.0250 | 0 | 2.32 |
DAA | 2005 | Gasoline | New ☆☆☆☆ | 0.0125 | 0 | 2.32 |
DBA | 2005 | Gasoline | New ☆☆☆☆ (75% lower than 2005 regs) | 0.0125 | 0 | 2.32 |
DLA | 2005 | Gasoline | New ☆☆☆☆ | 0.0125 | 0 | 2.32 |
LBA | 2009 | Gasoline | | 0.0500 | 0 | 2.32 |
LAA | 2009 | Gasoline | | 0.0250 | 0 | 2.32 |
LLA | 2009 | Gasoline | | 0.0125 | 0 | 2.32 |
MBA | 2009 | Gasoline | New ☆☆☆ | 0.0250 | 0 | 2.32 |
MAA | 2009 | Gasoline | New ☆☆☆ | 0.0250 | 0 | 2.32 |
MLA | 2009 | Gasoline | New ☆☆☆ | 0.0250 | 0 | 2.32 |
RBA | 2009 | Gasoline | New ☆☆☆☆ | 0.0250 | 0 | 2.32 |
RAA |
2009 |
Gasoline |
New ☆☆☆☆ |
0.0250 |
0 |
2.32 |
RLA |
2009 |
Gasoline |
New ☆☆☆☆ |
0.0250 |
0 |
2.32 |
QBA |
2009 |
Gasoline |
New ☆ |
0.0450 |
0 |
2.32 |
QAA |
2009 |
Gasoline |
New ☆ |
0.0450 |
0 |
2.32 |
QLA |
2009 |
Gasoline |
New ☆ |
0.0450 |
0 |
2.32 |
3BA |
2018 |
Gasoline |
|
0.0500 |
0 |
2.32 |
3AA |
2018 |
Gasoline |
|
0.0250 |
0 |
2.32 |
3LA |
2018 |
Gasoline |
|
0.0125 |
0 |
2.32 |
4BA |
2018 |
Gasoline |
New ☆☆☆ |
0.0375 |
0 |
2.32 |
4AA |
2018 |
Gasoline |
New ☆☆☆ |
0.0375 |
0 |
2.32 |
4LA |
2018 |
Gasoline |
New ☆☆☆ |
0.0375 |
0 |
2.32 |
5BA |
2018 |
Gasoline |
New ☆☆☆☆ |
0.0250 |
0 |
2.32 |
5AA |
2018 |
Gasoline |
New ☆☆☆☆ |
0.0250 |
0 |
2.32 |
5LA |
2018 |
Gasoline |
New ☆☆☆☆ |
0.0250 |
0 |
2.32 |
6BA |
2018 |
Gasoline |
New ☆☆☆☆☆ |
0.0125 |
0 |
2.32 |
6AA |
2018 |
Gasoline |
New ☆☆☆☆☆ |
0.0125 |
0 |
2.32 |
6LA | 2018 | Gasoline | New ☆☆☆☆☆ | 0.0125 | 0 | 2.32 |
- | -1979 | Diesel | | 1.3400 | 0.2 | 2.58 |
K | 1979 | Diesel | | 1.2000 | 0.2 | 2.58 |
N | 1982-83 | Diesel | | 1.0200 | 0.2 | 2.58 |
P | 1982-83 | Diesel | | 1.0200 | 0.2 | 2.58 |
Q | 1986-87 | Diesel | meets 1986/87 regs | 0.7000 | 0.2 | 2.58 |
X | 1990-92 | Diesel | meets 1990 regs (<1.265t) | 0.5000 | 0.2 | 2.58 |
Y | 1990-92 | Diesel | | 0.5000 | 0.2 | 2.58 |
KD | 1994 | Diesel | meets 1995 regs | 0.5000 | 0.2 | 2.58 |
KE | 1997-98 | Diesel | meets 1997 regs (<1.265t) | 0.4000 | 0.08 | 2.58 |
HA | 1997-98 | Diesel | | 0.2000 | 0.04 | 2.58 |
KH | 1997-98 | Diesel | meets 1998 regs (>1.265t) | 0.4000 | 0.08 | 2.58 |
HD | 1997-98 | Diesel | | 0.2000 | 0.04 | 2.58 |
DA | 1997-98 | Diesel | ☆ | 0.3000 | 0.06 | 2.58 |
WA | 1997-98 | Diesel | ☆ | 0.3000 | 0.06 | 2.58 |
DB |
1997-98 |
Diesel |
☆☆ |
0.2000 |
0.04 |
2.58 |
WB |
1997-98 |
Diesel |
☆☆ |
0.2000 |
0.04 |
2.58 |
DC |
1997-98 |
Diesel |
☆☆☆ |
0.1000 |
0.02 |
2.58 |
WC |
1997-98 |
Diesel |
☆☆☆ |
0.1000 |
0.02 |
2.58 |
DK |
1997-98 |
Diesel |
☆ |
0.3000 |
0.06 |
2.58 |
WK |
1997-98 |
Diesel |
☆ |
0.3000 |
0.06 |
2.58 |
DL |
1997-98 |
Diesel |
☆☆ |
0.2000 |
0.04 |
2.58 |
WL |
1997-98 |
Diesel |
☆☆ |
0.2000 |
0.04 |
2.58 |
DM |
1997-98 |
Diesel |
☆☆☆ |
0.1000 |
0.02 |
2.58 |
WM |
1997-98 |
Diesel |
☆☆☆ |
0.1000 |
0.02 |
2.58 |
KM |
2002 |
Diesel |
|
0.2800 |
0.052 |
2.58 |
HT |
2002 |
Diesel |
|
0.1400 |
0.026 |
2.58 |
KN | 2002 | Diesel | meets 2002 regs (GW>1.265t) | 0.2800 | 0.052 | 2.58 |
KR | 2003 | Diesel | meets 2003 regs (GW>2.5t) | - | - | - |
HU | 2002 | Diesel | | 0.1400 | 0.026 | 2.58 |
TF | 2002 | Diesel | ☆ | 0.2100 | 0.039 | 2.58 |
XF | 2002 | Diesel | ☆ | 0.2100 | 0.039 | 2.58 |
TG | 2002 | Diesel | ☆ | 0.2100 | 0.039 | 2.58 |
XG | 2002 | Diesel | ☆ | 0.2100 | 0.039 | 2.58 |
LF | 2002 | Diesel | ☆☆ | 0.1400 | 0.026 | 2.58 |
YF | 2002 | Diesel | ☆☆ | 0.1400 | 0.026 | 2.58 |
LG | 2002 | Diesel | ☆☆ | 0.1400 | 0.026 | 2.58 |
YG | 2002 | Diesel | ☆☆ | 0.1400 | 0.026 | 2.58 |
UF | 2002 | Diesel | ☆☆☆ | 0.0700 | 0.013 | 2.58 |
ZF | 2002 | Diesel | ☆☆☆ | 0.0700 | 0.013 | 2.58 |
UG | 2002 | Diesel | ☆☆☆ | 0.0700 | 0.013 | 2.58 |
ZG | 2002 | Diesel | ☆☆☆ | 0.0700 | 0.013 | 2.58 |
ADB | 2005 | Diesel | | 0.1400 | 0.013 | 2.58 |
ADC |
2005 |
Diesel |
|
0.1400 |
0.013 |
2.58 |
ACB |
2005 |
Diesel |
|
0.0700 |
0.0065 |
2.58 |
ACC |
2005 |
Diesel |
|
0.0700 |
0.0065 |
2.58 |
AMB |
2005 |
Diesel |
|
0.035 |
0.00325 |
2.58 |
AMC |
2005 |
Diesel |
|
0.035 |
0.00325 |
2.58 |
CCB |
2005 |
Diesel |
New ☆☆☆ |
0.0700 |
0.0065 |
2.58 |
CCC |
2005 |
Diesel |
New ☆☆☆ |
0.0700 |
0.0065 |
2.58 |
CDB |
2005 |
Diesel |
New ☆☆☆ |
0.0700 |
0.0065 |
2.58 |
CDC |
2005 |
Diesel |
New ☆☆☆ |
0.0700 |
0.0065 |
2.58 |
CMB |
2005 |
Diesel |
New ☆☆☆ |
0.0700 |
0.0065 |
2.58 |
CMC |
2005 |
Diesel |
New ☆☆☆ |
0.0700 |
0.0065 |
2.58 |
DCB |
2005 |
Diesel |
New ☆☆☆☆ |
0.0350 |
0.00325 |
2.58 |
DCC |
2005 |
Diesel |
New ☆☆☆☆ |
0.0350 |
0.00325 |
2.58 |
DDB |
2005 |
Diesel |
New ☆☆☆☆ |
0.0350 |
0.00325 |
2.58 |
DDC |
2005 |
Diesel |
New ☆☆☆☆ |
0.0350 |
0.00325 |
2.58 |
DMB |
2005 |
Diesel |
New ☆☆☆☆ |
0.0350 |
0.00325 |
2.58 |
DMC |
2005 |
Diesel |
New ☆☆☆☆ |
0.0350 |
0.00325 |
2.58 |
LDA |
2009 |
Diesel |
|
0.0800 |
0.005 |
2.58 |
LCA |
2009 |
Diesel |
|
0.0400 |
0.0025 |
2.58 |
LMA |
2009 |
Diesel |
|
0.0200 |
0.00125 |
2.58 |
FDA |
2009 |
Diesel |
|
0.0800 |
0.005 |
2.58 |
FCA |
2009 |
Diesel |
|
0.0400 |
0.0025 |
2.58 |
FMA |
2009 |
Diesel |
|
0.0200 |
0.00125 |
2.58 |
MDA |
2009 |
Diesel |
New ☆☆☆ |
0.0400 |
0.0025 |
2.58 |
MCA |
2009 |
Diesel |
New ☆☆☆ |
0.0400 |
0.0025 |
2.58 |
MMA |
2009 |
Diesel |
New ☆☆☆ |
0.0400 |
0.0025 |
2.58 |
RDA |
2009 |
Diesel |
New ☆☆☆☆ |
0.0200 |
0.00125 |
2.58 |
RCA |
2009 |
Diesel |
New ☆☆☆☆ |
0.0200 |
0.00125 |
2.58 |
RMA |
2009 |
Diesel |
New ☆☆☆☆ |
0.0200 |
0.00125 |
2.58 |
QDA |
2009 |
Diesel |
New ☆ |
0.0720 |
0.0045 |
2.58 |
QCA |
2009 |
Diesel |
New ☆ |
0.0720 |
0.0045 |
2.58 |
QMA |
2009 |
Diesel |
New ☆ |
0.0720 |
0.0045 |
2.58 |
3DA |
2018 |
Diesel |
|
0.1500 |
0.005 |
2.58 |
3CA |
2018 |
Diesel |
|
0.0750 |
0.0025 |
2.58 |
3MA |
2018 |
Diesel |
|
0.0375 |
0.00125 |
2.58 |
4DA |
2018 |
Diesel |
New ☆☆☆ |
0.1125 |
0.00375 |
2.58 |
4CA |
2018 |
Diesel |
New ☆☆☆ |
0.1125 |
0.00375 |
2.58 |
4MA |
2018 |
Diesel |
New ☆☆☆ |
0.1125 |
0.00375 |
2.58 |
5DA |
2018 |
Diesel |
New ☆☆☆☆ |
0.0750 |
0.0025 |
2.58 |
5CA |
2018 |
Diesel |
New ☆☆☆☆ |
0.0750 |
0.0025 |
2.58 |
5MA |
2018 |
Diesel |
New ☆☆☆☆ |
0.0750 |
0.0025 |
2.58 |
6DA | 2018 | Diesel | New ☆☆☆☆☆ | 0.0375 | 0.00125 | 2.58 |
6CA | 2018 | Diesel | New ☆☆☆☆☆ | 0.0375 | 0.00125 | 2.58 |
6MA | 2018 | Diesel | New ☆☆☆☆☆ | 0.0375 | 0.00125 | 2.58 |
EA | | Electrical | | 0 | 0 | 0 |
ZAA | | Electrical | | 0 | 0 | 0 |
ZBA | 2005 | Fuel cell | | 0 | 0 | 0 |
|
|
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