CAFE-III: New Fuel-Efficiency Norms for Passenger Vehicles [Prelims Bits]

02 Oct 2026

Tags: Prelims   Current events of national and international importance

Source: The Indian Express

  • CAFE-III norms, notified on 29 September 2026, apply from 1 April 2027–31 March 2032.
  • Focus shifts from individual models to manufacturer-wide fleet fuel efficiency, with greater incentives for cleaner technologies.
  • CAFE: Corporate Average Fuel Economy; fuel-consumption target is calculated using the weighted average of vehicles sold by an OEM.
  • Reference vehicle weight: 1,229 kg; earlier proposed/reference framework used 1,170 kg.
  • Small-car concession: Earlier separate concession for cars below 909 kg removed; vehicle weight is incorporated into the broader fleet formula.
  • Weight principle: Heavier average fleet → higher permitted fuel consumption; lighter fleet → lower permitted fuel consumption.
  • EV incentive: Battery EV + range-extended EV receive a 3× volume multiplier in fleet calculation.
  • Technology-neutral approach: Framework recognises contributions from hybrids, renewable fuels, ethanol-blended petrol, biofuels and CBG, besides EVs.
  • Objective: Improve fleet-level fuel efficiency and reduce CO₂ emissions while encouraging technological innovation.
  • Compliance: Norms provide a 3+2-year compliance roadmap, giving manufacturers longer-term planning certainty.
  • OEM (Original Equipment Manufacturer): Vehicle manufacturer whose fleet is assessed for CAFE compliance.
  • Key distinction: CAFE regulates average fleet fuel efficiency/CO₂ performance, whereas BS-VI emission norms regulate permissible tailpipe pollutants from vehicles.

Prelims Question

Q1. With reference to India’s Corporate Average Fuel Efficiency (CAFE) norms, consider the following statements:

  1. CAFE norms assess the average fuel-efficiency performance of a manufacturer's fleet rather than prescribing an identical fuel-efficiency requirement for every individual passenger vehicle.
  2. Battery electric vehicles can receive a higher weighting in the fleet-average calculation than conventional internal-combustion vehicles.
  3. CAFE norms and Bharat Stage (BS) emission standards primarily address the same set of pollutants and operate through an identical regulatory mechanism.
  4. Under CAFE-III, fuel-efficiency performance is expressed using petrol-equivalent fuel consumption, allowing different fuel types to be compared within a common framework.

Which of the statements given above are correct?

(a) 1 and 2 only
(b) 1, 2 and 4 only
(c) 2, 3 and 4 only
(d) 1, 3 and 4 only

Answer: (b)

Explanation:

  • Statement 1 is Correct: CAFE regulates the fleet-average fuel-efficiency/CO₂ performance of a manufacturer.
  • Statement 2 is Correct: Under CAFE-III, a battery EV is counted as three vehicles for the fleet-efficiency calculation, providing a strong incentive for electrification.
  • Statement 3 is Incorrect: CAFE and BS norms are not interchangeable. CAFE focuses primarily on fleet-average fuel consumption/CO₂ performance, whereas BS standards regulate tailpipe pollutants such as NOx, PM, CO and hydrocarbons.
  • Statement 4 is Correct: Different fuels are converted into petrol-equivalent values using notified conversion factors, enabling fleet-level comparison.