Pollutant key

Extract from the registration certificate Part I for a car. In field 14 you can find the pollutant key "EURO 4".

The pollutant key , often also referred to as the emission key number, is the key for the emissions standard of a motor vehicle entered in the registration papers . The pollutant code is given

in the vehicle registration document (by October 1, 2005) with the last two digits of the number in the key number field for 1 ,

in the registration certificate part 1 by the last two digits of the number in field 14.1 . Notwithstanding, the keys 35A0-35M0 apply to the Euro 5 emissions class and the 36N0-36Y0 keys to the Euro 6 emissions class.

Effective restrictions on emissions

The legislature tries to reduce emissions from combustion and other technical processes through a variety of measures. Since the 1970s, industrial emissions have been noticeably reduced. Any comparison of the conditions in industrial regions, for example in China today with those in Europe today, shows what has been achieved. It must be recognized that many of the improvements not only cost money, but also save money because the corresponding processes are more efficient than without technical emissions control.

After the introduction of exhaust gas regulation and exhaust gas filtering in motor vehicles, a popular topic of new interventions today is the regulation of the previously largely unrestricted use of these motor vehicles.

Restrictions on exhaust emissions from motor vehicles

The amount of carbon dioxide (CO ₂ ) exhaust gas emitted by motor vehicles is initially largely proportional to the amount of energy burned. In addition, gases in the ambient air are changed. In particular, ozone and nitrogen oxides as well as carbon monoxide are produced .

The amount of these gas components depends on the type of combustion and its precise management. The guidance takes place with the help of control devices, which are, however, rather poorly effective when starting the cold engine and accelerating the vehicle.

Dust emission restrictions

The European Union has defined limit values for the dust content of the ambient air. In many large cities, this limit is continuously exceeded. As a result of the definitions chosen, a large amount of dust can initially occur in each assessment period without violating the rules. By accumulating the amount of dust, the remaining amount that is still permissible is reduced disproportionately for the rest of the period of the assessment period. Formally, dust-emitting systems and devices would no longer be operated at all towards the end of the assessment period.

Compared to the dust emissions of earlier heavy industry combines, the amount of dust in the atmosphere is significantly reduced today. However, individual sources of dust emissions are still significant for health today. The emission of fine soot from automobiles and ashes from unregulated wood combustion is particularly critical for breathing.

Controlled combustion in the sense of technology is combustion that is operated with an emission of dust that is minimized by controlling interventions. This requires appropriate technical equipment that has a lasting effect on the efficiency of the combustion: The amount of fuel required increases in order to regulate the interventions in the combustion process.

Oven heating restrictions

No pollutant key has yet been defined for furnace heating. Discussions about the limitation of pollutants in the furnace heating are being held, but there are no legal regulations to date.

Vehicle use restrictions

The municipalities are trying to reduce the amount of dust by restricting vehicle traffic. This appears to be the only way out to avoid the violations of the limit values for exhaust gas and dust pollution that are common today. The regulation on the labeling of motor vehicles with a low contribution to pollution creates a basis for this. A sticker color was assigned to the emission codes and particulate reduction levels.

Motor vehicle tax based on pollutant emissions

The key number is entered for each vehicle in the registration certificate part I (last two digits in field 14.1 or - in the old vehicle registration document - in the field "key number for 1"; deviations for EURO 5 and EURO 6 see above). It is the basis for the assessment of vehicle tax in Germany. The tax rate for motor vehicle tax applies to every 100 cm³ or part thereof in euros and is based on the vehicle's classification in the European emissions standard. From April 1, 2007, all diesel vehicles that do not meet the Euro 4 standard (30-33, 36-48, 53-70, 72-75) will pay 1.20 euros more per 100 cubic centimeters of displacement.

Key numbers

Up to EURO 4

00 Others (driving ban in case of ozone alarm)
01 Low in pollutants (= EURO 1)
02 Conditionally low in pollutants C / XXIII (= EURO 1)
03 Low-pollutant E (cars with a displacement of more than 1700 cm³ and with full registration before July 26, 1995) Driving ban in the event of ozone alarm (conversion to EURO 1 possible)
04 Low in pollutants, if certified in the vehicle registration document, driving ban in the event of ozone alarm (conversion to EURO 1 possible)
05 Other (driving ban in the event of ozone alarm)
06 Other (driving ban in the event of ozone alarm)
07 electric drive (exempt)
08 Others (driving ban in case of ozone alarm)
09 Low in pollutants, if certified in the vehicle license, driving ban in the event of ozone alarm (conversion to EURO 1 possible)
10 SKL: S1 if the vehicle can be shown to have been equipped with a catalytic converter and regulated mixture preparation (GKAT) before July 26, 1995
11 Low-pollutant E1 (SKL: S1, GKL G1) (= EURO 1)
12 Particularly low in pollutants. 0.08 (SKL: S1, GKL G1 OEST)
13 Particularly low in pollutants E1 0.08
14 Low emission E2 (= EURO 1)
15 Low in pollutants if certified in a vehicle registration document
16 Low emission E2, 8.1 (= EURO 1)
17 93/59 / EEC, ANH. I.8.3
18 S-ARM: 93/59 / EEC I (= EURO 1)
19 S: 93/59 / EEC II
20 S: 93/59 / EEC III (SKL: S2)
21 Low-pollutant E 2, (SKL: S2, GKL: G1) (= EURO 1)
22 S-ARM. 93/59 / I, G: 92/97 (= EURO 1)
23 S 93/59 / II, G: 92/97 / EEC
24 S 93/59 / III, G: 92/97 / EEC
25 Low-emission EURO 2
26 Low emission EURO 2, G: 92/97
27 EURO 2 I EG 1, taxed like EURO 2
28 EURO 2 II, taxed like EURO 1
29 EURO 2 III, taxed like EURO 1
30 D3 (93/59 / EEC I)
31 D3 I (93/59 / I, GKL: G1)
32 D4 (93/59 / I, GKL: G1 OEST)
33 D4 I.
34 E2, 5L
35 EURO 2, 5L
36 D3, 5L
37 D3 I, 5L
38 D4, 5L
39 D4 I, 5L
40 (93/59 / EEC II), E2, 3L
41 (93/59 / II, GKL: G1) EURO 2, 3L
42 (93/59 / II, GKL: G1 OEST), D3, 3L
43 D4, 3L
44 EURO 3
45 EURO 3, 5L
46 EURO 3, 3L
47 EURO 3 I.
48 EURO 3 I, 5L
49 EURO 3 II
50 (93/59 / EEC III), EURO 3 II, 5L
51 (98/69 / EG III; A), EURO 3 III
52 (93/59 / III, GKL: G1 OEST), EURO 3 III, 5L
53 EURO 3 + D4
54 EURO 3 + D4, 5L
55 EURO 3 + D4, 3L
56 EURO 3 I + D4 I.
57 EURO 3 I + D4 I, 5L
58 EURO 3 II + D4 I
59 EURO 3 II + D4 I, 5L
60 (94/12 / EG (W)) EURO 3 III + D4 I
61 (94/12 / EG (W), GKL: G1) EURO 3 III + D4 I, 5L
62 EURO 4
63 EURO 4, 5L
64 EURO 4, 3L
65 EURO 4 I.
66 EURO 4 I, 5L
67 EURO 4 II
68 EURO 4 II, 5L
69 EURO 4 III
70 EURO 4 III, 5L
71 EURO 2
72
73 (= EURO 4)
74 (= EURO 4)
75 (= EURO 4)
77 (= EURO 1, retrofitted)
88 others
98 Oldtimers - regardless of the previous emission class, are given the value 0098 instead of a key number and the entry "Oldtimer" in field 14.

5 EURO

35A0 EURO5; A; PI / CI; M, N1 I.
35B0 EURO5; N; CI; M1 sozE without M1G
35C0 EURO5; C; CI; M1G sozE
35D0 EURO5; D; PI / CI; N1 II
35E0 EURO5; E; PI / CI; N1 III, N2

35F0 EURO5; F; PI / CI; M, N1 I.
35G0 EURO5; G; CI; M1 sozE without M1G
35H0 EURO5; H; PI / CI; N1 II
35I0 EURO5; I; PI / CI; N1 III, N2

35J0 EURO5; J; PI / CI; M, N1 I.
35K0 EURO5; K; CI; M1 sozE without M1G
35L0 EURO5; L; PI / CI; N1 II
35M0 EURO5; M; PI / CI; N1 III, N2

EURO 6

Early EURO 6 standards, still parallel to EURO 5.

36N0 EURO6; N; CI; M, N1 I - first registrations until December 31, 2012
36O0 EURO6; O; CI; N1 II - first registrations until December 31, 2012
36P0 EURO6; P; CI; N1 III, N2 - first registrations until December 31, 2012

36Q0 EURO6; Q; CI; M, N1 I - first registrations until December 31, 2013
36R0 EURO6; R; CI; N1 II - first registrations until December 31, 2013
36S0 EURO6; S; CI; N1 III, N2 - first registrations until December 31, 2013

36T0 EURO6; T; CI; M, N1 I - first registrations until August 31, 2015
36U0 EURO6; U; CI; N1 II - first registrations until August 31, 2016
36V0 EURO6; V; CI; N1 III, N2 - first registrations until August 31, 2016

EURO 6b - in the RDE without limit, measured according to the NEDC , first registrations from September 1, 2015 (except special permits)

36W0 EURO6; W; PI / CI; M, N1 I - first registrations until August 31, 2018
36X0 EURO6; X; PI / CI; N1 II - first registrations until August 31, 2019
36Y0 EURO6; Y; PI / CI; N1 III, N2 First registrations until August 31, 2019

EURO 6c OBD = 6-1 - NOx in RDE without limit, measured according to NEDC

36ZA EURO6; ZA; PI / CI; M, N1 I - first registrations until August 31, 2018
36ZB EURO6; ZB; PI / CI; N1 II - first registrations until August 31, 2019
36ZC EURO6; ZC; PI / CI; N1 III, N2 - first registrations until August 31, 2019

EURO 6c OBD = 6-2 - NOx in the RDE without limit, measured according to the NEDC

36ZD EURO6; ZD; PI / CI; M, N1 I; KBA no. 018, July 2017 - first registrations by August 31, 2018
36ZE EURO6; ZE; PI / CI; N1 II; KBA no. 018, July 2017 - first registrations by August 31, 2019
36ZF EURO6; ZF; PI / CI; N1 III, N2; KBA no. 018, July 2017 - first registrations by August 31, 2019

EURO 6b - in the RDE without limit, measured according to WLTP

36BA EURO6; WLTP; BA; PI / CI; M, N1 I; KBA no. 018; July 2017 - first registrations until August 31, 2018
36BB EURO6; WLTP; BB; PI / CI; N1 II; KBA no. 018; July 2017 - first registrations until August 31, 2019
36BC EURO6; WLTP; BC; PI / CI; N1 III, N2; KBA no. 018; July 2017 - first registrations until August 31, 2019

EURO 6c OBD = 6-1 - NOx in the RDE without limit, measured according to WLTP

36AA EURO6; WLTP; AA; PI / CI; M, N1 I; KBA no. 018; July 2017 - first registrations until August 31, 2018
36AB EURO6; WLTP; AB; PI / CI; N1 II; KBA no. 018; July 2017 - first registrations until August 31, 2019
36AC EURO6; WLTP; AC; PI / CI; N1 III, N2; KBA no. 018; July 2017 - first registrations until August 31, 2019

EURO 6c OBD = 6-2 - NOx in the RDE without limit, measured according to WLTP , all first registrations from September 1st, 2018

36AD EURO6; WLTP; AD; PI / CI; M, N1 I; KBA no. 018; July 2017 - first registrations until August 31, 2019
36AE EURO6; WLTP; AE; PI / CI; N1 II; KBA no. 018; July 2017 - first registrations until August 31, 2020
36AF EURO6; WLTP; AF; PI / CI; N1 III, N2; KBA no. 018; July 2017 - first registrations until August 31, 2020

EURO 6d-TEMP - NOx with an RDE factor of 2.1, measured according to WLTP , new type approvals from September 1, 2017

36ZG EURO6; ZG; PI / CI; M, N1 I KBA no. 018, July 2017 - first registrations by August 31, 2018
36ZH EURO6; ZH; PI / CI; N1 II KBA no. 018, July 2017 - first registrations by August 31, 2019
36ZI EURO6; ZI; PI / CI; N1 III, N2 KBA no. 018, July 2017 - first registrations by August 31, 2019

36AG EURO6; WLTP; AG; PI / CI; M, N1 I; KBA no. 018; July 2017 - first registrations until August 31, 2019
36AH EURO6; WLTP; AH; PI / CI; N1 II; KBA no. 018; July 2017 - first registrations until August 31, 2019
36AI EURO6; WLTP; AI; PI / CI; N1 III, N2; KBA no. 018; July 2017 - first registrations until August 31, 2019

EURO 6d-TEMP-ISC OBD = 6-2

36CG EURO6; WLTP; CG; PI / CI; M, N1 I KBA no. 021, Dec. 2018 - first registrations by August 31, 2019

EURO 6d-TEMP-EVAP - NOx in RDE factor 2.1, measured according to WLTP , new type approvals from September 1, 2019, all first registrations from September 1, 2019

36BG EURO6; WLTP; BG; PI / CI; M, N1 I; KBA no. 021; December 2018 - first registrations until August 31, 2019
36BH EURO6; WLTP; BH; PI / CI; N1 II; KBA no. 021; December 2018 - first registrations until August 31, 2020
36BI EURO6; WLTP; BI; PI / CI; N1 III, N2; KBA no. 021; December 2018 - first registrations until August 31, 2020

EURO 6d - NOx in RDE factor 1.5, measured according to WLTP ,

36ZJ EURO6; ZJ; PI / CI; M, N1 I KBA no. 018, July 2017 - first registrations by August 31, 2018
36ZK EURO6; ZK; PI / CI; N1 II KBA no. 018, July 2017 - first registrations by August 31, 2019
36ZL EURO6; ZL; PI / CI /; N1 III, N2 KBA no. 018, July 2017 - first registrations by August 31, 2019

36AJ EURO6; WLTP; AJ; PI / CI; M, N1 I; KBA no. 021; December 2018 - first registrations until August 31, 2019
36AK EURO6; WLTP; AK; PI / CI; N1 II; KBA no. 021; December 2018 - first registrations until August 31, 2020
36AL EURO6; WLTP; AL; PI / CI; N1 III, N2; KBA no. 021; December 2018 - first registrations until August 31, 2020

EURO 6d-TEMP-EVAP-ISC OBD = 6-2

36DG EURO6; WLTP; DG; PI / CI; M, N1 I; KBA no. 021, Dec. 2018 - first registrations by December 31, 2020
36CH EURO6; WLTP; CH; PI / CI; N1 II; KBA no. 021, Dec. 2018 - first registrations by December 31, 2021
36CI EURO6; WLTP; CI; PI / CI; N1 III, N2; KBA no. 021, Dec. 2018 - first registrations by December 31, 2021

EURO 6d-ISC

36AM EURO6; M, N1 group I I; KBA no. 021; December 2018 - first registrations by December 31, 2020
36AN EURO6; N1 group II; KBA no. 021; December 2018 - first registrations until December 31, 2021
36AO EURO6; N1 III, N2; KBA no. 021; December 2018 - first registrations until December 31, 2021

EURO 6d-ISC-FCM

36AP EURO6; M, N1 I KBA no. 021; December 2018 new type approvals from January 1, 2020, all first registrations from January 1, 2021
36AQ EURO6; N1 II KBA no. 021; December 2018 new type approvals from January 1, 2021, all first registrations from January 1, 2022
36AR EURO6; N1 III, N2 KBA no. 021; December 2018 new type approvals from January 1, 2021, all first registrations from January 1, 2022

Tested according to NEDC - first registrations by August 31, 2019

30ZX 459/2012; pure electric vehicles , - use only with fuel code "0004" in field (10) of the registration certificate part I
30ZY 459/2012; Hydrogen; fuel cell / hydrogen; PHEV - use only with fuel codes “0011”, “0015” or “0028” in field (10) of the registration certificate part I
30ZZ 459/2012; US certificate - use only in connection with the certificate acc. Annex I, Section 2.1.1 of Regulation (EC) No. 692/2008 (additional technical regulations for small series manufacturers)

Tested according to WLTP - first registrations since September 1st, 2019

30AX 2017/1151; WLTP; pure electric vehicles KBA no. 018; July 2017; Use only i. V. m. Fuel code "0004" in field (10) of the ZB I.
30AY 2017/1151; WLTP; Hydrogen; fuel cell / hydrogen; PHEV KBA no. 018; July 2017; Use only i. V. m. Fuel codes "0011", "0015", "0028", "0035" or "0036" in field (10) of the ZB I.
30AZ 2017/1151; WLTP; US certificate KBA no. 018; July 2017; Use only i. V. m. the certificate according to Annex I, Section 2.1.1 of Regulation (EC) No. 692/2008 (additional technical regulations for small series manufacturers)

Abbreviations

EVAP - Evaporative Emission, so it's about evaporative emissions. This tests how many hydrocarbons a car emits from its fuel system over a period of 48 hours.
ISC - In-Service-Conformity-Tests and means that vehicles already on the road have to prove that they continue to meet the emissions regulations.
FCM - Fuel Consumption Monitoring means: In the future, a car will have to store its real fuel and energy consumption throughout its entire journey. The values can be read out and evaluated via the diagnostic interface, which is intended to further reduce the gap between test bench measurements and real emissions or consumption.

Web links

Vehicle tax calculation by the authority