India’s CAFE 3 norms will require carmakers to make the passenger vehicles they sell collectively more fuel-efficient from April 2027, while giving no separate carve-out to small petrol cars. The Ministry of Power notified the five-year framework on 29 September 2026, according to contemporaneous reporting by Business Standard, Moneycontrol and NDTV Profit. Its most important business consequence is a shift from arguing about one model’s size to managing a manufacturer’s whole sales mix.
The Bureau of Energy Efficiency (BEE), the government agency administering the framework, explains that corporate average fuel economy is measured across a manufacturer’s cars sold in a fiscal year. This is why CAFE 3 norms matter to product planners, suppliers and buyers even though the regulation does not simply ban any particular petrol or diesel model. The important shift is how the fleet formula and compliance credits change decisions across an entire showroom.
What the final CAFE 3 norms change
The new period is clear: the rules apply from the start of financial year 2027–28 to the end of 2031–32. The M1 category broadly covers passenger cars, including hatchbacks, sedans and sport-utility vehicles, manufactured or imported for sale in India. BEE’s original CAFE materials describe M1 vehicles as having no more than nine seats including the driver and a gross vehicle weight of no more than 3,500 kg.
The key metric is the sales-weighted average fuel consumption, converted into a common petrol-equivalent measure, for each automaker. A firm selling a large number of efficient vehicles can offset a smaller number of less efficient ones within the calculation. A firm whose mix shifts toward heavier, thirstier vehicles needs more efficiency improvements or eligible clean-vehicle sales to meet its assigned fleet target.
This is not a uniform mileage requirement for every individual car. The target is linked to the average weight of the manufacturer’s fleet. BEE’s explanation of India’s existing passenger-car rules makes the distinction explicit: it is the corporate average, rather than an individual model’s fuel consumption, that is regulated. The newly notified framework tightens that system for the next five years.
Why small cars lost a special concession
The September 2025 BEE draft proposed a separate benefit for qualifying petrol cars with an unladen weight of up to 909 kg. In that version, three grams of carbon dioxide per kilometre would be deducted when calculating a manufacturer’s fleet performance for those cars. That proposal became a fault line: small-car producers argued their vehicles were already relatively frugal, while electric-vehicle makers said a special credit would favour one segment.
Business Standard reports that the final notification drops that dedicated concession but changes the main weight-linked equation itself. Its reported reference weight moves to 1,229 kg from 1,170 kg in the older draft, and the annual weight adjustment becomes flatter. Moneycontrol independently reports that no separate small-car relief survived the final rules. Those details matter because a concession embedded in the general formula is available through the same calculation to all manufacturers, while a segment-specific deduction would have treated a narrow group of models differently.
Business Standard calculated illustrative FY28 carbon-dioxide targets of about 82.8 g/km for a 909-kg car and 142.4 g/km for a 2,500-kg car using the final equation. Those are the newspaper’s model-level examples of the formula, not government certification values for named cars. Its comparison with the September 2025 proposal indicates a softer result for light vehicles and a tougher result for very heavy ones.
For consumers, this does not mean every small car automatically becomes cheaper or every SUV disappears. Automakers will balance engineering cost, demand, pricing, credits and their wider product range. The immediate consequence is strategic: companies can no longer plan around a separate 909-kg petrol-car deduction, but can still benefit from selling efficient light vehicles under the common weight-based calculation.
How electric and hybrid sales affect the fleet average
CAFE 3 norms use “super credits” to give some cleaner powertrains extra weight in the compliance calculation. Business Standard says a battery electric vehicle and a range-extended electric vehicle each receive a factor of three. It reports factors of 2.5 for plug-in hybrids and strong hybrids running on flex-fuel, 1.6 for strong hybrids, and 1.1 for flex-fuel vehicles. These are accounting factors, not claims that an EV physically removes three petrol vehicles from the road.
The incentive makes a clean-vehicle launch valuable beyond the direct sales margin. A manufacturer can use EV volume to improve its fleet compliance position, while a petrol-heavy competitor might need more engine efficiency, hybridisation or credit purchases. This is an inference from the reported accounting design, not a forecast that every automaker will choose the same technology or that EV sales will rise by a specific amount.
India’s EV ecosystem also needs testing capacity, charging, supply chains and buyers willing to adopt the cars. Lapaas Voice recently examined how the GARC testing upgrade expands an EV certification bench. A separate report on Tata’s battery-as-a-service offer shows how one automaker is changing the ownership proposition. Neither development guarantees CAFE compliance, but both help explain why a fleet rule can influence investment far beyond engine calibration.
Credits make compliance a portfolio decision
The final framework reportedly creates a credit-and-debit passbook for each manufacturer. According to Business Standard, a carmaker beating its fleet target earns credits; one missing the target records debits. Credits can be carried within a compliance block and traded between eligible manufacturers, while a remaining shortfall can be covered through a BEE buyout at prescribed rates.
Its report puts the buyout price at ₹2,500 per gram of CO₂ per kilometre in FY28, increasing by ₹500 each year to ₹4,500 in FY32. Moneycontrol separately confirms that range. These prices should not be mistaken for the retail price of a car or a tax directly charged to a driver. They price a compliance instrument for carmakers under the reported rules.
| Financial year | Reported BEE buyout price per g CO₂/km |
|---|---|
| FY28 | ₹2,500 |
| FY29 | ₹3,000 |
| FY30 | ₹3,500 |
| FY31 | ₹4,000 |
| FY32 | ₹4,500 |
The escalation creates a stronger incentive to solve a shortfall through the product plan rather than rely indefinitely on buying credits. Yet the trading mechanism also offers flexibility: a manufacturer ahead of its target can monetise some of that advantage, while another may have time to introduce new models. Whether a meaningful credit market develops will depend on how many firms generate surpluses, how BEE administers transfers and what the final compliance data show.
What the numbers do, and do not, say
NDTV Profit reports that the headline reference fuel-consumption number tightens from 3.996 litres per 100 km in FY28 to 3.3273 litres per 100 km in FY32. The distinction is crucial: the actual allowable fleet average for a particular manufacturer is calculated with the weight-linked formula, so these reference values should not be presented as a simple mileage promise for every car in a showroom.
A lower litre-per-100-kilometre figure means higher fuel efficiency. Converting one reference figure to a consumer-friendly kilometres-per-litre headline, however, would also risk confusion because certification cycles, vehicle fuels and the fleet-weight adjustment affect the result. A buyer should continue comparing tested model-level efficiency information rather than assume CAFE 3 assigns an identical target to every model.
Business Standard and Moneycontrol agree on the big policy change: the government has resolved the special small-car concession question while retaining a weight-based architecture and cleaner-vehicle incentives. Their interpretation of which vehicle makers benefit most is necessarily conditional on future sales mixes. At this stage, reported formulas are a guide to incentives, not proof of final consumer prices or future market shares.
Why the 29 September notification is new
India has debated the third phase of corporate average standards for years. The BEE’s September 2025 draft is useful primary evidence of what was proposed earlier, but it must not be cited as the final rule. BEE put another draft out for comment in July 2026, and the Ministry of Power then notified the framework on 29 September 2026, according to the new reports.
That sequence explains why older articles can conflict with today’s account. A draft may include a small-car deduction, a different reference weight or different multipliers; those details do not automatically survive notification. The relevant new event is finalisation, and the question for businesses is how the final formula changes investment decisions before the April 2027 start.
Three independent current outlets corroborate the event and core changes: Business Standard’s original report, Moneycontrol’s automotive report, and NDTV Profit’s summary. The Hindu BusinessLine and Economic Times also carried new accounts on 30 September. We have not treated copies of a wire story as extra independent confirmation.
What automakers and buyers should watch next
Manufacturers now have a planning horizon and a reason to test their sales-mix scenarios against the formula. An SUV-heavy producer may find itself paying more attention to hybrids, EVs or efficiency upgrades; a small-car specialist must determine whether its fleet’s weight and consumption profile offset the absence of a separate deduction. Suppliers of batteries, lightweight materials, power electronics and efficient engines may see demand, but the direction and size of individual contracts remain uncertain.
Buyers should watch model launches, official efficiency ratings and transparent explanations of any price changes, rather than assume a direct retail surcharge from the credit table. Dealership claims that a particular vehicle is “CAFE compliant” can also mislead if they imply a one-car certification: the core calculation belongs to the maker’s aggregate fleet. There may be other vehicle-level requirements, but they are separate from this corporate average.
For policymakers, the first useful evidence will be BEE’s published compliance data once FY28 sales are reported and assessed. That can show whether the weight-linked formula and trading provisions actually push fleet fuel consumption down while giving automakers room to compete. Until then, the notification is a binding planning signal, not a measured emissions outcome.
CAFE 3 norms: frequently asked questions
When do CAFE 3 norms start?
The notified five-year framework begins on 1 April 2027 and runs through 31 March 2032 for covered passenger vehicles. Current reporting says it is divided into a three-year compliance block and a two-year block.
Do CAFE 3 norms ban petrol or diesel cars?
No. They set a fuel-consumption target for each manufacturer’s covered fleet. Cleaner models and compliance credits can help a carmaker meet that target while it continues to sell a mix of vehicles.
Did small cars receive a separate exemption?
No separate sub-909-kg petrol-car concession appears in the reported final rule. The common weight-based calculation remains, so the effect on any company depends on its entire sales mix.
Will the new rules make every car more expensive?
No specific retail price outcome follows from the notification alone. Manufacturers may respond through engineering, model mix and credits, and those choices will differ by company.
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