The Ministry of Power has released draft CAFE III norms, setting stricter emission targets for passenger vehicles starting in the 2027-28 fiscal year. These rules encourage fuel efficiency and provide new credits for using carbon-neutral fuels like ethanol and compressed bio-gas. For auto manufacturers, the transition requires planning for higher compliance standards through 2032.
The Ministry of Power has published draft Corporate Average Fuel Economy (CAFE) III norms, outlining a roadmap for emission reductions in passenger vehicles from the 2027-28 fiscal year through 2031-32. These proposed regulations are designed to succeed the current CAFE-II standards, which are set to expire on March 31, 2027. The rules apply specifically to M1 category passenger vehicles, which are defined as vehicles with up to eight seats in addition to the driver's seat.
Progressive Emission Reduction Targets
The draft regulations propose a clear, phased tightening of fuel consumption targets. The mandate begins in 2027-28 with a target of 3.996 litres per 100 kilometres, which corresponds to 94.76 grams of CO2 per kilometre. Over the following four years, this target is scheduled to tighten steadily. By the 2031-32 period, manufacturers must achieve a target of 3.3273 litres per 100 kilometres, or 78.90 grams of CO2 per kilometre. This structured decline is intended to provide automotive companies with a predictable timeline to adjust their product development and engine technology strategies.
Incentives for Green Fuel and Technology
For the first time, the proposed framework acknowledges the role of carbon-neutral fuels in meeting environmental targets. The government plans to introduce a carbon neutrality factor that allows manufacturers to adjust their tailpipe CO2 emission figures based on the use of ethanol, bio-fuels, and compressed bio-gas (CBG). For instance, current ethanol blending levels may allow for an 8 percent reduction factor in calculated emissions. Furthermore, the draft includes technology incentives. Manufacturers can claim compliance credits of up to 9 grams of CO2 per kilometre for integrating specific fuel-saving technologies, though individual technology claims are restricted to a maximum of 1 gram per kilometre.
Investor Monitorables and Industry Impact
Investors may track how individual automotive original equipment manufacturers (OEMs) adapt their vehicle portfolios to meet these tighter constraints. Companies that have already invested heavily in fuel-efficient engines, hybrid technologies, and alternative fuel compatibility may find the transition more manageable. Conversely, firms with a product mix heavily skewed toward larger, less fuel-efficient vehicles may face pressure to accelerate their transition or incur compliance costs. The industry is currently in a feedback window, with the Ministry of Power inviting submissions from stakeholders until August 6, 2026. The final impact on company margins will depend on the cost of implementing these technologies versus potential penalties for non-compliance, as well as the actual consumer demand for higher-efficiency models in the coming years.