Government Releases Revised Draft of CAFE III Norms for Vehicle Efficiency

The Bottom Line

•The new CAFE III draft provides a phased, flexible path for automakers to reach higher fuel efficiency standards by 2032.
•The government is inviting industry feedback to refine the carbon credit mechanism before finalizing the upcoming regulations.

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Draft CAFE III Overview:

The Indian Ministry of Power has unveiled a revised draft of the Corporate Average Fuel Economy (CAFE III) norms for passenger vehicles, targeting full implementation by April 1, 2027. This framework introduces a progressive tightening of fuel efficiency requirements through fiscal year 2032 to lower national vehicular emissions. The updated proposal offers a more balanced approach compared to earlier versions, relaxing initial fuel efficiency targets to support manufacturers while still pushing for long-term carbon efficiency. The draft also emphasizes special recognition for vehicles compatible with ethanol and biofuels, promoting a diverse energy mix in the transport sector.

Compliance and Trading Mechanisms:

Under the proposed regulations, automakers must track fuel efficiency using both the Modified Indian Driving Cycle (MIDC) and the Worldwide Harmonised Light Vehicles Test Procedure (WLTP). The government plans to announce specific conversion factors between these cycles separately. To provide operational flexibility, the draft retains a credit trading mechanism managed by the Bureau of Energy Efficiency (BEE). Manufacturers who exceed efficiency targets earn credits, while those falling short can purchase debits. Buyout prices are set to scale significantly, rising from Rs 2,500 per gCO2/km in FY2028 to Rs 4,500 per gCO2/km by FY2032.

Industry Reaction and Future Outlook:

While the Ministry seeks to promote advanced automotive technologies—finalizing benefits for features like regenerative braking, tire pressure monitoring, and advanced glazing—the industry remains cautious. Leading players like Tata Motors have expressed reservations, specifically regarding the calculation methods for the CO2 credit system. Manufacturers are actively lobbying for modifications, arguing that current proposals fail to account for previous technological investments in fuel efficiency. The government has invited public feedback for 21 days before finalizing these rules, which will ultimately dictate product strategy and powertrain development for both domestic and international automakers operating in India.

Pulse Intelligence

^{Context & Impact}

Context & Background

CAFE norms are part of India's long-term strategy to improve fleet-wide fuel efficiency and reduce carbon emissions in the passenger vehicle segment.
The automotive industry previously pushed back against earlier drafts, citing concerns over the aggressive speed and stringency of the proposed efficiency targets.
Manufacturers have been advocating for a more predictable and transparent carbon credit trading mechanism to better manage compliance costs during the market transition.

Key Consequences

Automakers are likely to accelerate the integration of mild-hybrid systems, advanced energy-saving tech, and flex-fuel engines to leverage proposed incentives.
Ongoing discussions between the government and OEMs may lead to a more phased and flexible implementation schedule for final regulatory requirements.
The credit trading mechanism will serve as a vital financial buffer for manufacturers struggling to meet initial benchmarks in the early implementation phase.

Market & Economic Impact

Automakers may face increased short-term R&D expenditure and stock volatility as the market assesses compliance costs under the new norms.