Draft CAFE‑III Norms: Stricter Fuel Efficiency & Bio‑fuel Credits
The Ministry of Road Transport and Highways has issued a CAFE‑III draft for public comment. The proposal aims to lower fuel consumption and carbon emissions of passenger vehicles from 1 April 2027 onward, while rewarding the use of ethanol and other bio‑fuels.
Key Developments (Stakeholder‑Facing)
- Fuel‑consumption target will tighten from 3.996 L/100 km (94.76 gCO₂/km) in FY 2027‑28 to 3.327 L/100 km (78.90 gCO₂/km) by FY 2031‑32.
- Compliance will be assessed in two blocks – an initial three‑year period followed by a two‑year period – instead of yearly checks.
- Introduction of CNFs allowing manufacturers to claim an 8 % reduction for current ethanol blending levels.
- Additional incentives of up to 9 gCO₂/km can be claimed for approved fuel‑saving technologies, with a cap of 1 gCO₂/km per technology.
- ‘Super credits’ will be granted to BEVs, REEVs, PHEVs, SHEVs and Flex‑Fuel Vehicles when calculating fleet‑average fuel consumption.
- Manufacturers exceeding targets earn compliance credits that can be carried forward within the same compliance block.
- Industry has until 6 August 2026 to submit comments.
Important Facts
The draft marks the first time that ethanol and other bio‑fuels receive explicit credit in the CAFE regime. Under the proposal, the lower‑life‑cycle emissions of ethanol will allow a reduction of eight percentage points from the declared tail‑pipe emissions. Similar adjustments for compressed biogas (CBG) will depend on prevailing blending levels.
Manufacturers of small cars and large vehicles have taken opposite stances, each presenting its own version of how the norms should be framed. The government maintains that extensive trials and best‑practice data back the ethanol‑blending approach, despite lingering concerns.
Exam Relevance
Understanding CAFE‑III is crucial for GS 3 (Economy & Environment) as it links energy policy, automotive industry regulation, and climate‑change mitigation. The use of