CAFE-III norms tighten India's fuel-efficiency rules for carmakers

India has notified the third phase of its corporate average fuel efficiency norms, CAFE-III, tightening the mileage and carbon targets that carmakers must meet across their fleets. The rules were reported by The Indian Express on September 30, 2026.

CAFE norms work on a fleet-average basis. Every manufacturer sells a mix of models, and the average fuel consumption of that mix has to stay under a limit set by the government. Miss the limit and you pay a penalty. The first phase, CAFE-I, came into force in 2017. CAFE-II followed in 2022. CAFE-III pushes the target further out.

What changes for carmakers

The tighter the target, the harder it gets to sell heavy, thirsty vehicles without offsetting them. A carmaker with a lineup full of large SUVs has to either improve those models, add efficient ones, or buy credits. That math shapes product plans years in advance.

Small cars sit at the centre of this. They are lighter and burn less fuel, so they help a fleet average. But small cars also carry thinner margins. If the cost of meeting CAFE-III lands on entry-level models, prices there could rise. That is the tension the industry has flagged repeatedly: the segment that helps compliance is the segment least able to absorb extra cost.

Where EVs fit

Electric vehicles carry zero tailpipe emissions, so they count heavily toward fleet compliance. A carmaker selling more EVs gets more headroom on the petrol and diesel side. That gives firms a reason to push EVs beyond what pure demand might justify.

The flip side is that EV sales in India are still concentrated in a few price bands and a few cities. If EV volumes stay low, the compliance benefit stays small, and the pressure shifts back to improving conventional engines.

The small car question

India's small car market has been shrinking as a share of total sales, with buyers moving toward SUVs. CAFE-III could slow that shift or accelerate it, depending on how carmakers respond. Some may invest in hybrid tech to bridge the gap. Others may lean harder on EVs.

What the norms do not do is set a single technology path. They set an outcome, and let the market decide how to reach it.

The Indian Express report did not specify the exact CAFE-III targets or the compliance timeline beyond the notification. Those details will determine how much room carmakers have.

For now, the direction is clear: the fleet has to get more efficient, and the clock is running.