What does it cover?
UN R154 addresses WLTP emissions, CO₂, fuel and energy consumption and range measurements for light vehicles. The selected 04 series also covers emissions control, OBD, battery durability and electric range at low temperatures. Scope and test conditions differ between Levels 1A, 1B and 2.
Who is it for?
For vehicle, engine and powertrain manufacturers and measurement, testing and approval teams.
Which subjects are addressed?
- WLTP and approval levels
- Emissions, consumption and electric range
- OBD, battery and emissions durability
Common question
Do all R154 approval levels use the same test cycle?
No. The text distinguishes Levels 1A, 1B and 2. Test cycle and vehicle category need to be read for the selected approval level.
Published RegsUP edition
This page is tied to the published RegsUP working edition below; it is not an official consolidated text.
RegsUP record title: R154 — UN Regulation No. 154
Working series: 04 · Included supplement: 0
RegsUP edition publication date:
This is the RegsUP publication decision date, not the date the regulation entered into force.