# Stage V – Regulation

Stage V emission standard is effective since 2020 for all engine used in *Non-Road Mobile Machinery *(NRMM) applications.

The regulaton of referece is the EU2016/1628 which can be dowloaded Here in multiple languages.

Here below are reported the the most relevant sections:

##### Hiden

##### CLOSE ALL

##### 2016/1628 - Engine Categories

Article 4

Engine categories

1. For the purposes of this Regulation, the following engine categories, divided into the sub-categories set out in Annex I, apply:

(1)

‘category NRE’ :(a)

engines for non-road mobile machinery intended and suited to move, or to be moved, by road or otherwise, that are not excluded under Article 2(2) and are not included in any other category set out in points (2) to (10) of this paragraph;(b)

engines having a reference power of less than 560 kW used in the place of Stage V engines of categories IWP, IWA, RLL or RLR;

(2)

‘category NRG’ : engines having a reference power that is greater than 560 kW, exclusively for use in generating sets; engines for generating sets other than those having those characteristics are included in the categories NRE or NRS, according to their characteristics;

(3)

‘category NRSh’ : hand-held SI engines having a reference power that is less than 19 kW, exclusively for use in hand-held machinery;

(4)

‘category NRS’ : SI engines having a reference power that is less than 56 kW and not included in category NRSh;

(5)

‘category IWP’ :(a)

engines exclusively for use in inland waterway vessels, for their direct or indirect propulsion, or intended for their direct or indirect propulsion, having a reference power that is greater than or equal to 19 kW;(b)

engines used in place of engines of category IWA provided that they comply with Article 24(8);

(6)

‘category IWA’ : auxiliary engines exclusively for use in inland waterway vessels and having a reference power that is greater than or equal to 19 kW;

(7)

‘category RLL’ : engines exclusively for use in locomotives, for their propulsion or intended for their propulsion;

(8)

‘category RLR’ :(a)

engines exclusively for use in railcars, for their propulsion or intended for their propulsion;(b)

engines used in the place of Stage V engines of category RLL;

(9)

‘category SMB’ : SI engines exclusively for use in snowmobiles; engines for snowmobiles other than SI engines are included in the category NRE;

(10)

‘category ATS’ : SI engines exclusively for use in ATVs and SbS; engines for ATVs and SbS other than SI engines are included in the category NRE.

2. A variable-speed engine of a particular category may be used in the place of a constant-speed engine of the same category.

Variable-speed engines of category IWP used for constant-speed operation shall additionally comply with Article 24(7) or Article 24(8), as applicable.

3. Engines for auxiliary railway vehicles and auxiliary engines for railcars and locomotives are included in the categories NRE or NRS, according to their characteristics.

##### 2016/1628 - Annex II - Emission Limits

ANNEX II

Table II-1: Stage V emission limits for engine category NRE defined in point (1) of Article 4(1)

Emission stage

Engine sub-category

Power range

Ignition type

CO

HC

NOx

PM mass

PN

A

kW

g/kWh

g/kWh

g/kWh

g/kWh

#/kWh

Stage V

NRE-v-1

NRE-c-1

0 < P < 8

CI

8,00

(HC + NOx ≤ 7,50)

0,40 (1)

—

1,10

Stage V

NRE-v-2

NRE-c-2

8 ≤ P < 19

CI

6,60

(HC + NOx ≤ 7,50)

0,40

—

1,10

Stage V

NRE-v-3

NRE-c-3

19 ≤ P < 37

CI

5,00

(HC + NOx ≤ 4,70)

0,015

1 × 1012

1,10

Stage V

NRE-v-4

NRE-c-4

37 ≤ P < 56

CI

5,00

(HC + NOx ≤ 4,70)

0,015

1 × 1012

1,10

Stage V

NRE-v-5

NRE-c-5

56 ≤ P < 130

all

5,00

0,19

0,40

0,015

1 × 1012

1,10

Stage V

NRE-v-6

NRE-c-6

130 ≤ P ≤ 560

all

3,50

0,19

0,40

0,015

1 × 1012

1,10

Stage V

NRE-v-7

NRE-c-7

P > 560

all

3,50

0,19

3,50

0,045

—

6,00

(1) 0,60 for hand-startable, air-cooled direct injection engines.

Table II-2: Stage V emission limits for engine category NRG defined in point (2) of Article 4(1)

Emission stage

Engine sub-category

Power range

Ignition type

CO

HC

NOx

PM mass

PN

A

kW

g/kWh

g/kWh

g/kWh

g/kWh

#/kWh

Stage V

NRG-v-1

NRG-c-1

P > 560

all

3,50

0,19

0,67

0,035

—

6,00

Table II-3: Stage V emission limits for engine category NRSh defined in point (3) of Article 4(1)

Emission stage

Engine sub-category

Power range

Ignition type

CO

HC + NOx

kW

g/kWh

g/kWh

Stage V

NRSh-v-1a

0 < P < 19

SI

805

50

Stage V

NRSh-v-1b

603

72

Table II-4: Stage V emission limits for engine category NRS defined in point (4) of Article 4(1)

Emission stage

Engine sub-category

Power range

Ignition type

CO

HC + NOx

kW

g/kWh

g/kWh

Stage V

NRS-vr-1a

NRS-vi-1a

0 < P < 19

SI

610

10

Stage V

NRS-vr-1b

NRS-vi-1b

610

8

Stage V

NRS-v-2a

19 ≤ P ≤ 30

610

8

Stage V

NRS-v-2b

NRS-v-3

19 ≤ P < 56

4,40 (*1)

2,70 (*1)

(*1) Optionally, as an alternative, any combination of values satisfying the equation (HC + NOX) × CO0,784 ≤ 8,57 as well as the following conditions: CO ≤ 20,6 g/kWh and (HC + NOX) ≤ 2,7 g/kWh

Table II-5: Stage V emission limits for engine category IWP defined in point (5) of Article 4(1)

Emission stage

Engine sub-category

Power range

Ignition type

CO

HC

NOx

PM mass

PN

A

kW

g/kWh

g/kWh

g/kWh

g/kWh

#/kWh

Stage V

IWP-v-1

IWP-c-1

19 ≤ P < 75

all

5,00

(HC + NOx ≤ 4,70)

0,30

—

6,00

Stage V

IWP-v-2

IWP-c-2

75 ≤ P < 130

all

5,00

(HC + NOx ≤ 5,40)

0,14

—

6,00

Stage V

IWP-v-3

IWP-c-3

130 ≤ P < 300

all

3,50

1,00

2,10

0,10

—

6,00

Stage V

IWP-v-4

IWP-c-4

P ≥ 300

all

3,50

0,19

1,80

0,015

1 × 1012

6,00

Table II-6: Stage V emission limits for engine category IWA defined in point (6) of Article 4(1)

Emission stage

Engine sub-category

Power range

Ignition type

CO

HC

NOx

PM mass

PN

A

kW

g/kWh

g/kWh

g/kWh

g/kWh

#/kWh

Stage V

IWA-v-1

IWA-c-1

19 ≤ P < 75

all

5,00

(HC + NOx ≤ 4,70)

0,30

—

6,00

Stage V

IWA-v-2

IWA-c-2

75 ≤ P < 130

all

5,00

(HC + NOx ≤ 5,40)

0,14

—

6,00

Stage V

IWA-v-3

IWA-c-3

130 ≤ P < 300

all

3,50

1,00

2,10

0,10

—

6,00

Stage V

IWA-v-4

IWA-c-4

P ≥ 300

all

3,50

0,19

1,80

0,015

1 × 1012

6,00

Table II-7: Stage V emission limits for engine category RLL defined in point (7) of Article 4(1)

Emission stage

Engine sub-category

Power range

Ignition type

CO

HC

NOx

PM mass

PN

A

kW

g/kWh

g/kWh

g/kWh

g/kWh

#/kWh

Stage V

RLL-c-1

RLL-v-1

P > 0

all

3,50

(HC + NOx ≤ 4,00)

0,025

—

6,00

Table II-8: Stage V emission limits for engine category RLR defined in point (8) of Article 4(1)

Emission stage

Engine sub-category

Power range

Ignition type

CO

HC

NOx

PM mass

PN

A

kW

g/kWh

g/kWh

g/kWh

g/kWh

#/kWh

Stage V

RLR-c-1

RLR-v-1

P > 0

all

3,50

0,19

2,00

0,015

1 × 1012

6,00

Table II-9: Stage V emission limits for engine category SMB defined in point (9) of Article 4(1)

Emission stage

Engine sub-category

Power range

Ignition type

CO

NOx

HC

kW

g/kWh

g/kWh

g/kWh

Stage V

SMB-v-1

P > 0

SI

275

—

75

##### 2016/1628 - Annex IV - NRSC & NRTC - (Applicable emission cycles Vs Eng. Category)

ANNEX IVNon-road steady-state test cycles (NRSC)

Table IV-1: NRSC test cycles for engines of category NRE

Category

Speed operation

Purpose

Sub-category

NRSC

NRE

variable

Variable-speed engine having a reference power of less than 19 kW

NRE-v-1

NRE-v-2

G2 or C1

Variable-speed engine having a reference power greater than or equal to 19 kW but not more than 560 kW

NRE-v-3

NRE-v-4

NRE-v-5

NRE-v-6

C1

Variable-speed engine having a reference power greater than 560 kW

NRE-v-7

C1

constant

Constant-speed engine

NRE-c-1

NRE-c-2

NRE-c-3

NRE-c-4

NRE-c-5

NRE-c-6

NRE-c-7

D2

Table IV-2: NRSC test cycles for engines of category NRG

Category

Speed operation

Purpose

Sub-category

NRSC

NRG

variable

Variable-speed engine for generating set

NRG-v-1

C1

constant

Constant-speed engine for generating set

NRG-c-1

D2

Table IV-3: NRSC test cycles for engines of category NRSh

Category

Speed operation

Purpose

Sub-category

NRSC

NRSh

variable or constant

Engine having a reference power of not more than 19 kW, for use in hand-held machinery

NRSh-v-1a

NRSh-v-1b

G3

Table IV-4: NRSC test cycles for engines of category NRS

Category

Speed operation

Purpose

Sub-category

NRSC

NRS

variable < 3 600 rpm

Variable-speed engine having a reference power of not more than 19 kW, intended for operation < 3 600 rpm

NRS-vi-1a

NRS-vi-1b

G1

variable ≥ 3 600 rpm; or constant

Variable-speed engine having a reference power of not more than 19 kW, intended for operation ≥ 3 600 rpm; constant-speed engine having a reference power of not more than 19 kW

NRS-vr-1a

NRS-vr-1b

G2

variable or constant

Engine having both a reference power of between 19 kW and 30 kW and a total swept volume of less than 1 litre

NRS-v-2a

G2

Engine having a reference power greater than 19 kW, other than engine having both a reference power of between 19 kW and 30 kW and a total swept volume of less than 1 litre

NRS-v-2b

NRS-v-3

C2

Table IV-5: NRSC test cycles for engines of category IWP

Category

Speed operation

Purpose

Sub-category

NRSC

IWP

variable

Variable-speed engine intended for propulsion that operates on a fixed-pitch propeller curve

IWP-v-1

IWP-v-2

IWP-v-3

IWP-v-4

E3

constant

Constant-speed engine intended for propulsion that operates with a controllable-pitch or electrically coupled propeller

IWP-c-1

IWP-c-2

IWP-c-3

IWP-c-4

E2

Table IV-6: NRSC test cycles for engines of category IWA

Category

Speed operation

Purpose

Sub-category

NRSC

IWA

variable

Variable-speed engine intended for auxiliary use on inland waterway vessels

IWA-v-1

IWA-v-2

IWA-v-3

IWA-v-4

C1

constant

Constant-speed engine intended for auxiliary use on inland waterway vessels

IWA-c-1

IWA-c-2

IWA-c-3

IWA-c-4

D2

Table IV-7: NRSC test cycles for engines of category RLL

Category

Speed operation

Purpose

Sub-category

NRSC

RLL

variable

Variable-speed engine for propulsion of locomotives

RLL-v-1

F

constant

Constant-speed engine for propulsion of locomotives

RLL-c-1

D2

Table IV-8: NRSC test cycles for engines of category RLR

Category

Speed operation

Purpose

Sub-category

NRSC

RLR

variable

Variable-speed engine for propulsion of railcars

RLR-v-1

C1

constant

Constant-speed engine for propulsion of railcars

RLR-c-1

D2

Table IV-9: NRSC test cycles for engines of category SMB

Category

Speed operation

Purpose

Sub-category

NRSC

SMB

variable or constant

Engines for propulsion of snowmobiles

SMB-v-1

H

Table IV-10: NRSC test cycle for engines of category ATS

Category

Speed operation

Purpose

Sub-category

NRSC

ATS

variable or constant

Engines for propulsion of ATVs or SbS

ATS-v-1

G1

Non-road transient test cycles

Table IV-11: Non-road transient test cycle for engines of category NRE

Category

Speed operation

Purpose

Sub-category

NRE

variable

Variable-speed engine having reference power greater than or equal to 19 kW but not more than 560 kW

NRE-v-3

NRE-v-4

NRE-v-5

NRE-v-6

NRTC

Table IV-12: Non-road transient test cycle for engines of category NRS (1)

##### 2016/1628 - Annex V - Emission durability periods (EDP)

ANNEX VEmission durability periods (EDP) referred to in Article 25(1)

Table V-1: EDP for engine category NRE

Category

Ignition type

Speed operation

Power range (kW)

Sub-category

EDP (hours)

NRE

CI

variable

0 < P < 8

NRE-v-1

3 000

CI

8 ≤ P < 19

NRE-v-2

CI

19 ≤ P < 37

NRE-v-3

5 000

CI

37 ≤ P < 56

NRE-v-4

8 000

all

56 ≤ P < 130

NRE-v-5

130 ≤ P ≤ 560

NRE-v-6

P > 560

NRE-v-7

CI

constant

0 < P < 8

NRE-c-1

3 000

CI

8 ≤ P < 19

NRE-c-2

CI

19 ≤ P < 37

NRE-c-3

CI

37 ≤ P < 56

NRE-c-4

8 000

all

56 ≤ P < 130

NRE-c-5

130 ≤ P ≤ 560

NRE-c-6

P > 560

NRE-c-7

Table V-2: EDP for engine category NRG

Category

Ignition type

Speed operation

Power range (kW)

Sub-category

EDP (hours)

NRG

all

constant

P > 560

NRG-v-1

8 000

variable

NRG-c-1

Table V-3: EDP for engine category NRSh

Category

Ignition type

Speed operation

Power range (kW)

Swept volume (cm3)

Sub-category

EDP (hours)

NRSh

SI

variable or constant

0 < P < 19

SV < 50

NRSh-v-1a

50/125/300 (1)

SV ≥ 50

NRSh-v-1b

(1) EDP hours correspond to the EDP categories Cat 1/Cat 2/Cat 3 as defined in the delegated acts adopted pursuant to this Regulation.

Table V-4: EDP for engine category NRS

Category

Ignition type

Speed operation

Power range (kW)

Swept volume (cm3)

Sub-category

EDP (hours)

NRS

SI

variable ≥ 3 600 rpm; or constant

0 < P < 19

80 ≤ SV < 225

NRS-vr-1a

125/250/500 (1)

variable < 3 600 rpm

NRS-vi-1a

variable ≥ 3 600 rpm; or constant

SV ≥ 225

NRS-vr-1b

250/500/1 000 (1)

variable < 3 600 rpm

NRS-vi-1b

variable or constant

19 ≤ P < 30

SV ≤ 1 000

NRS-v-2a

1 000

SV > 1 000

NRS-v-2b

5 000

30 ≤ P < 56

any

NRS-v-3

5 000

(1) EDP hours correspond to the EDP categories Cat 1/Cat 2/Cat 3 as defined in the delegated acts adopted pursuant to this Regulation.

Table V-5: EDP for engine category IWP

Category

Ignition type

Speed operation

Power range (kW)

Sub-category

EDP (hours)

IWP

all

variable

19 ≤ P < 75

IWP-v-1

10 000

75 ≤ P < 130

IWP -v-2

130 ≤ P < 300

IWP -v-3

P ≥ 300

IWP -v-4

constant

19 ≤ P < 75

IWP -c-1

10 000

75 ≤ P < 130

IWP -c-2

130 ≤ P < 300

IWP -c-3

P ≥ 300

IWP -c-4

Table V-6: EDP for engine category IWA

Category

Ignition type

Speed operation

Power range (kW)

Sub-category

EDP (hours)

IWA

all

variable

19 ≤ P < 75

IWA-v-1

10 000

75 ≤ P < 130

IWA -v-2

130 ≤ P < 300

IWA -v-3

P ≥ 300

IWA -v-4

constant

19 ≤ P < 75

IWA -c-1

10 000

75 ≤ P < 130

IWA -c-2

130 ≤ P < 300

IWA -c-3

P ≥ 300

IWA -c-4

Table V-7: EDP for engine category RLL

Category

Ignition type

Speed operation

Power range (kW)

Sub-category

EDP (hours)

RLL

all

variable

P > 0

RLL-v-1

10 000

constant

P > 0

RLL-c-1

Table V-8: EDP for engine category RLR

Category

Ignition type

Speed operation

Power range (kW)

Sub-category

EDP (hours)

RLR

all

variable

P > 0

RLR-v-1

10 000

constant

P > 0

RLR-c-1

Table V-9: EDP for engine category SMB

Category

Ignition type

Speed operation

Power range (kW)

Sub-category

EDP (hours)

SMB

SI

variable or constant

P > 0

SMB-v-1

400 (1)

(1) Alternatively, an emission durability period of 8 000 km is permitted

Table V-10: EDP for engine category ATS

Category

Ignition type

Speed operation

Power range (kW)

Sub-category

EDP (hours)

ATS

SI

variable or constant

P > 0

ATS-v-1

500/1 000 (1)

(1) EDP hours correspond to the following total engine swept volumes: < 100 cm3/≥ 100 cm3.