What does it cover?
UN R101 regulates CO₂ and fuel consumption, electric energy consumption and electric range measurements for the M1 and N1 vehicles within its scope. Measurement subjects differ for combustion, hybrid and purely electric propulsion.
Who is it for?
For vehicle, engine and powertrain manufacturers and measurement, testing and approval teams.
Which subjects are addressed?
- CO₂ and fuel consumption
- Electric energy consumption
- Hybrid and electric vehicle range
Common question
Does the same measurement apply to every powertrain?
No. The text distinguishes combustion, hybrid and purely electric propulsion. Its defined exclusions for N1 vehicles also matter.
Published RegsUP edition
This page is tied to the published RegsUP working edition below; it is not an official consolidated text.
RegsUP record title: R101 — UN Regulation No. 101
Working series: 01 · Included supplement: 13
RegsUP edition publication date:
This is the RegsUP publication decision date, not the date the regulation entered into force.