Document ID: chunk:federal_register_of_legislation:F2024L00446:front:0:p6
Version: federal_register_of_legislation:F2024L00446
Segment Type: other
Provision Reference: 
Character Range: 17087–20277

and extra-high as defined in Annex B1) – this is called Level 1A. The second level requires testing using a 3-phase WLTC cycle (low, medium and high as defined in Annex B1) – this is called Level 1B.
              Where the requirements in this Regulation apply to either Level 1A or Level 1B only the Regulatory text uses "Level 1A only" or "Level 1B only" to denote the start of the level specific requirements.
1.1. Scope for Level 1A;
This Regulation applies to the type approval of vehicles of categories M1, M2, N1 and N2 with a reference mass not exceeding 2,610 kg with regard to the WLTP Type 1 test for emissions of gaseous compounds, particulate matter, particle number and to emissions of carbon dioxide and fuel consumption and/or the measurement of electric energy consumption and electric range and to the Type 4 test on evaporative emissions.
              In addition, this Regulation lays down rules for verifying the durability of pollution control devices and On-Board Diagnostic (OBD) systems.
At the manufacturer's request, type approval granted under this Regulation may be extended from vehicles mentioned above to M1, M2, N1 and N2 vehicles with a reference mass not exceeding 2,840 kg and which meet the conditions laid down in this Regulation.
              1.2. Scope for Level 1B;

This Regulation applies to the type approval of vehicles of categories M2 and N1 with a technical permissible maximum laden mass not exceeding 3,500 kg and to all vehicles of category M1 with regard to the WLTP Type 1 test for emissions of gaseous compounds, particulate matter, particle number and to emissions of carbon dioxide and fuel efficiency and/or the measurement of electric energy consumption and electric range and to the Type 4 test on evaporative emissions.
In addition, this Regulation lays down rules for verifying the durability of pollution control devices and On-Board Diagnostic (OBD) systems.
OVC-FCHVs are out of the scope of Level 1B of this Regulation.
              2. Abbreviations
              2.1. General abbreviations

AC              Alternating current

APF             Assigned permeability factor

BWC             Butane working capacity

CD              Charge-Depleting

CFD             Computational fluid dynamics

CFV             Critical flow venturi

CFO             Critical flow orifice

CLA             Chemiluminescent analyser

CS              Charge-Sustaining

CVS             Constant volume sampler

DC              Direct current

EAF             Sum of ethanol, acetaldehyde and formaldehyde

ECD             Electron capture detector

ET              Evaporation tube

Extra High2     Class 2 WLTC extra high speed phase

Extra High3     Class 3 WLTC extra high speed phase

FCHV            Fuel cell hybrid vehicle

FID             Flame ionization detector

FSD             Full scale deflection

GC              Gas chromatograph

GFV             Gas Fuelled Vehicle

HEPA            High efficiency particulate air (filter)

HFID            Heated flame ionization detector

High2           Class 2 WLTC high speed phase

High3a          Class 3a WLTC high speed phase

High3b          Class 3b WLTC high speed phase

ICE