Centre notifies CAFE-III fuel-efficiency norms for cars from April 2027
Each electric car will count as three in a carmaker's fleet average. Will that speed up India's shift away from petrol?
Published 1 October 2026. Written by Pratidin from the reports linked at the end; every fact checked by a separate review before publishing. How we work
The Ministry of Power notified the third phase of the Corporate Average Fuel Economy (CAFE-III) norms on 30 September 2026. They apply from 1 April 2027 to 31 March 2032 to M1 vehicles, that is, cars and other passenger vehicles, made or imported for sale in India. CAFE norms do not limit each car. They set a target for the average fuel consumption (and so the carbon dioxide emissions) of all cars a company sells in a year, adjusted for the average weight of its fleet. For a fleet at the reference weight of 1,229 kg, the target falls from 3.996 litres per 100 km in 2027-28 to 3.3273 litres per 100 km in 2031-32, an improvement of about 16.7%.
The final rules differ from the September 2025 draft. The reference weight was raised from 1,170 kg to 1,229 kg, and the target curve was made flatter, which gives relatively more room to fleets of lighter cars and makes targets stricter for heavier fleets. A separate concession proposed for small petrol cars weighing under 909 kg, an extra 3 g CO2/km of relaxation, was dropped. 'Super credits' let cleaner vehicles count more than once: each battery electric or range-extended electric car counts as three, plug-in hybrids and flex-fuel strong hybrids as 2.5, strong hybrids as 1.6 and flex-fuel ethanol vehicles as 1.1.
Companies that beat their targets earn credits that they can trade with other manufacturers. Those that fall short can buy credits from the Bureau of Energy Efficiency (BEE) at ₹2,500 per g CO2/km in 2027-28, rising to ₹4,500 by 2031-32. CAFE norms were first notified in 2017 under the Energy Conservation Act, 2001: Stage I from 2017-18 targeted 130 g CO2/km and Stage II from 2022-23 targeted 113 g CO2/km. The proposed small-car concession had divided the industry, with some carmakers strongly opposing weight-based relief. The super credits are meant to push carmakers towards electric and hybrid models.
Prelims facts
- CAFE-III, notified by the Ministry of Power on 30 September 2026, applies from 1 April 2027 to 31 March 2032 to M1 passenger vehicles.
- At the 1,229 kg reference weight, the fleet target tightens from 3.996 to 3.3273 litres per 100 km, about 16.7%.
- Super credits: battery electric cars count as 3, plug-in hybrids 2.5, strong hybrids 1.6, flex-fuel vehicles 1.1.
- The draft's extra relaxation for small petrol cars under 909 kg was dropped.
- CAFE norms are framed under the Energy Conservation Act, 2001; Stage I (2017-18) targeted 130 g CO2/km and Stage II (2022-23) 113 g CO2/km.
Quick recall
- Ministry that notified CAFE-III
- Ministry of Power, on 30 September 2026.
- Period of CAFE-III
- 1 April 2027 to 31 March 2032.
- CAFE-III reference fleet weight
- 1,229 kg (1,170 kg in the September 2025 draft).
- CAFE-III target at reference weight
- 3.996 L/100 km in 2027-28 falling to 3.3273 L/100 km in 2031-32.
- Super credit for a battery electric car under CAFE-III
- Counted as three vehicles.
- Parent law of CAFE norms
- Energy Conservation Act, 2001.
- CAFE Stage I and Stage II CO2 targets
- 130 g CO2/km from 2017-18; 113 g CO2/km from 2022-23.
- BEE credit price under CAFE-III
- ₹2,500 per g CO2/km in 2027-28, rising to ₹4,500 by 2031-32.
Prelims practice question
With reference to Corporate Average Fuel Economy (CAFE) norms in India, which one of the following statements is correct?
- They set a fuel consumption limit that each individual car model must meet
- They set a target for the sales-weighted average of a manufacturer's whole fleet
- They are notified under the Motor Vehicles Act, 1988 by the Ministry of Road Transport and Highways
- They apply only to diesel vehicles
Show answer
Answer: (b) They set a target for the sales-weighted average of a manufacturer's whole fleet. CAFE norms apply to a manufacturer's fleet average, adjusted for fleet weight, not to each model. They are framed under the Energy Conservation Act, 2001 and notified by the Ministry of Power, and they cover petrol, diesel, CNG, LPG, hybrid and electric passenger vehicles.
Use this in UPSC Mains: previous-year questions
Recurring theme: Energy efficiency, clean transport and India's energy security
- How to use this
Use the successive CAFE stages to show measurable progress on efficient, cleaner energy use in passenger transport, and the policy tools driving it.
- CAFE norms were first notified in 2017 under the Energy Conservation Act, 2001: Stage I (2017-18) targeted 130 g CO2/km and Stage II (2022-23) 113 g CO2/km.
- CAFE-III (notified 30 September 2026, for 2027-28 to 2031-32) tightens the fleet target at 1,229 kg reference weight from 3.996 to 3.3273 litres per 100 km, about 16.7%.
- Super credits count each battery electric car as three vehicles, plug-in hybrids 2.5, strong hybrids 1.6 and flex-fuel cars 1.1, pushing makers towards cleaner models.
- How to use this
Use CAFE-III to show a regulatory route to energy independence: making fleets more efficient and steering buyers to electric, hybrid and ethanol-capable vehicles.
- CAFE-III cuts the fleet fuel-consumption target by about 16.7% from 2027-28 to 2031-32; lower fuel use per km cuts crude oil imports.
- Super credits reward clean technology: battery EVs count as 3, plug-in hybrids and flex-fuel strong hybrids 2.5, strong hybrids 1.6 and flex-fuel ethanol vehicles 1.1, supporting ethanol use.
- Market mechanism: makers that beat targets trade credits; laggards buy from BEE at ₹2,500 per g CO2/km in 2027-28, rising to ₹4,500 by 2031-32.
- How to use this
Use CAFE-III as a demand-side energy security measure for transport that also serves decarbonisation, while noting its design weaknesses.
- CAFE-III (1 April 2027 to 31 March 2032) tightens average fleet fuel consumption by about 16.7%, which reduces crude oil import needs.
- Flex-fuel super credits (1.1, or 2.5 for flex-fuel strong hybrids) support ethanol use, and EV credits of 3 accelerate electrification of passenger cars.
- Concerns to note: super credits can let a few EVs offset many petrol cars, cars may become costlier, and real-world fuel use can differ from test values.
Mains practice question
What are Corporate Average Fuel Economy (CAFE) norms? Evaluate how CAFE-III can help India's energy security and decarbonisation goals. (150 words)
Model answer
Corporate Average Fuel Economy (CAFE) norms cap the average fuel consumption of all passenger vehicles a manufacturer sells in a year. CAFE-III, notified on 30 September 2026, applies from 2027-28 to 2031-32.
Key features
- Fleet target at 1,229 kg reference weight falls from 3.996 to 3.3273 litres per 100 km, about 16.7%.
- Super credits: battery EVs count as 3, plug-in hybrids 2.5, strong hybrids 1.6, flex-fuel 1.1.
- Credit trading; shortfalls can be met by buying credits from BEE.
Energy security
- Lower fuel use per km cuts crude oil imports.
- Flex-fuel credits support ethanol use.
Decarbonisation
- Tighter fleet averages reduce CO2 from road transport.
- Super credits reward electric and hybrid models.
Concerns
- Super credits can let a few EVs offset many petrol cars.
- Cars may become costlier.
- Real-world fuel use can differ from test values.
CAFE-III is a useful tool if paired with charging infrastructure and cleaner power.
The basics
Why this matters
Cars run mostly on petrol and diesel refined from imported crude oil. Instead of fixing a limit for each model, India sets a target for each carmaker's whole fleet. The third phase of these norms, CAFE-III, applies from April 2027 and is designed to nudge companies towards electric and hybrid cars.
How a fleet target works
The Corporate Average Fuel Economy norms compare the sales-weighted average fuel consumption of a company's cars with a target that depends on the average weight of its fleet. Heavier fleets get a higher allowance, but the allowance rises more slowly under CAFE-III than in the September 2025 draft.
Counting cleaner cars more than once
Super credits are multipliers. When the fleet average is calculated, each cleaner vehicle is counted as more than one sale, which pulls the average down faster.
Who runs it
The norms are framed under the Energy Conservation Act, 2001 and administered by the Bureau of Energy Efficiency under the Ministry of Power. Companies that beat their target earn credits they can sell; those that miss it can buy credits, including from the BEE at ₹2,500 per g CO2/km in 2027-28 rising to ₹4,500 by 2031-32.
From Stage I to Stage III
Stage I (2017-18) targeted 130 g CO2/km and Stage II (2022-23) 113 g CO2/km. CAFE-III runs from 2027-28 to 2031-32.
Go deeper
In one line: The Ministry of Power has notified CAFE-III, which tightens the average fuel use of each carmaker's fleet by about 16.7% between 2027-28 and 2031-32 and rewards electric and hybrid cars with super credits.
Why it matters for UPSC
GS3 energy, environment and infrastructure; Prelims on BEE, the Energy Conservation Act and vehicle emission policy.
The core idea
Corporate Average Fuel Economy norms set a target for a company's whole fleet, not for each model. CAFE-III makes the target stricter and uses Super credits to give extra weight to cleaner vehicles. The norms come from the Energy Conservation Act, 2001 and are run by the Bureau of Energy Efficiency.
Numbers and dates to remember
- Notified 30 September 2026; in force 1 April 2027 to 31 March 2032.
- Reference weight 1,229 kg (draft: 1,170 kg).
- Target 3.996 L/100 km (2027-28) to 3.3273 L/100 km (2031-32), about 16.7%.
- Super credits: EV 3; plug-in hybrid 2.5; strong hybrid 1.6; flex-fuel 1.1.
- BEE credit price ₹2,500 rising to ₹4,500 per g CO2/km.
- Earlier: Stage I 130 g CO2/km (2017-18); Stage II 113 g CO2/km (2022-23).
Where to go next
- Corporate Average Fuel Economy norms: how a fleet average target works.
- Super credits: why one EV counts as three cars.
- Bureau of Energy Efficiency: the agency that runs CAFE and star labels.
- Energy Conservation Act, 2001: the law behind India's efficiency rules.
Go deeper: do super credits help or dilute the norms?
For the design. Super credits make each electric car count three times, so carmakers have a strong reason to build and sell EVs and hybrids. Credit trading and the option of buying credits from the Bureau of Energy Efficiency give flexibility, so the norms can be tight without forcing sudden model withdrawals.
Against. Critics say multipliers mean a company can meet its average with fewer real improvements in petrol cars, since each EV counted as three lets several less efficient cars stay in the fleet.
The small-car fight. The draft offered an extra relaxation for small petrol cars under 909 kg. The proposal divided carmakers, and some strongly opposed weight-based relief. The final rules dropped the concession but made the target curve flatter, which gives lighter fleets relatively more room and makes heavier fleets work harder.
Fuel choice. Credits for flex-fuel vehicles link the norms to ethanol blending policy, while super credits for EVs link them to the power sector. The cleaner the grid, the larger the real climate gain from EVs.
Legal frame. The Energy Conservation Act, 2001 lets the Centre set consumption standards for equipment and vehicles. CAFE is one of its tools, alongside appliance star labels and industrial efficiency schemes.
Corporate Average Fuel Economy norms
How a fleet average target works.
In one line: Corporate Average Fuel Economy (CAFE) norms limit the average fuel consumption, and so the CO2 emissions, of all passenger vehicles a manufacturer sells in a year.
How it works
The norms relate fuel consumption to the average kerb weight of the vehicles sold. Each company's sales-weighted fleet average must stay below a target that depends on its fleet's average weight. They cover petrol, diesel, LPG, CNG, hybrid and electric passenger vehicles with gross vehicle weight below 3,500 kg.
The phases
- Stage I from 2017-18: 130 g CO2/km.
- Stage II from 2022-23: 113 g CO2/km.
- CAFE-III, 2027-28 to 2031-32: at the 1,229 kg reference weight, 3.996 falling to 3.3273 litres per 100 km.
Where to go next
Super credits
Why one EV counts as three cars.
In one line: Super credits are multipliers that count cleaner vehicles more than once when a manufacturer's fleet average is calculated.
How it works
If a company sells 100 petrol cars and 10 electric cars, a super credit of 3 means the EVs are counted as 30 vehicles with very low emissions. This pulls the fleet average down more than the real sales share would.
Under CAFE-III
- Battery electric and range-extended electric vehicles: 3.
- Plug-in hybrids and flex-fuel strong hybrids: 2.5.
- Strong hybrids: 1.6.
- Flex-fuel ethanol vehicles: 1.1.
The debate
Supporters say multipliers speed up the shift to EVs. Critics say they can let average real-world emissions fall more slowly than the paper average suggests.
Where to go next
Bureau of Energy Efficiency
The agency that runs CAFE and star labels.
In one line: The Bureau of Energy Efficiency (BEE) is a statutory body under the Ministry of Power, set up in 2002 under the Energy Conservation Act, 2001, to improve energy efficiency across the economy.
What it does
- Star labelling of appliances such as air-conditioners and refrigerators.
- The Perform, Achieve and Trade scheme for energy-intensive industries.
- Energy conservation building codes.
- Administering CAFE norms for passenger vehicles.
Why it is in the news
Under CAFE-III, carmakers that miss their fleet targets can buy credits from the BEE, priced at ₹2,500 per g CO2/km in 2027-28 and rising to ₹4,500 by 2031-32.
Where to go next
Bureau of Energy Efficiency: every story that connects to it (2)
Energy Conservation Act, 2001
The law behind India's efficiency rules.
In one line: The Energy Conservation Act, 2001 is the main law for energy efficiency in India; it created the Bureau of Energy Efficiency and lets the Centre set consumption standards.
What it allows
- Energy consumption norms and standards for equipment, appliances and vehicles.
- Mandatory labels showing energy use.
- Norms for large energy users, called designated consumers.
- Energy conservation codes for buildings.
The Energy Conservation (Amendment) Act, 2022 added powers for a carbon credit trading scheme.
Why it is in the news
CAFE norms, first notified in 2017, are framed under this Act, and CAFE-III is its latest use for passenger vehicles.
Where to go next
Prelims-style quiz
Consider the following statements:
1. CAFE Stage II, from 2022-23, targeted 113 g CO2/km.
2. CAFE norms cover only vehicles with a gross vehicle weight above 3,500 kg.
Which of the statements given above is/are correct?- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
Show answer
Answer: (a) 1 only. 1 is correct. 2 is incorrect: CAFE norms cover passenger vehicles with gross vehicle weight below 3,500 kg.
Consider the following statements about CAFE-III norms:
1. They apply from 1 April 2027.
2. They give a separate extra relaxation to small petrol cars weighing under 909 kg.
3. They count each battery electric car as three vehicles in the fleet calculation.
How many of the statements given above are correct?- Only one
- Only two
- All three
- None
Show answer
Answer: (b) Only two. 1 is correct. 2 is incorrect: the small-car concession proposed in the draft was dropped. 3 is correct: battery electric vehicles carry a super credit of 3.
Consider the following statements:
Statement-I: Under CAFE-III, selling more battery electric cars helps a manufacturer meet its fleet target faster than selling the same number of efficient petrol cars.
Statement-II: CAFE-III counts each battery electric car as three vehicles when calculating the fleet average.
Which one of the following is correct in respect of the above statements?- Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
- Both Statement-I and Statement-II are correct and Statement-II does not explain Statement-I
- Statement-I is correct but Statement-II is incorrect
- Statement-I is incorrect but Statement-II is correct
Show answer
Answer: (a) Both Statement-I and Statement-II are correct and Statement-II explains Statement-I. Both are correct. The super credit of 3 multiplies the weight of each zero-tailpipe vehicle in the average, which is why EVs pull the fleet average down faster; Statement-II explains Statement-I.
Match the vehicle type with its CAFE-III super credit:
1. Strong hybrid : 1.6
2. Plug-in hybrid : 2.5
3. Flex-fuel ethanol vehicle : 1.1
4. Range-extended electric vehicle : 2.5
How many of the pairs given above are correctly matched?- Only one
- Only two
- Only three
- All four
Show answer
Answer: (c) Only three. 1, 2 and 3 are correct. 4 is wrong: range-extended electric vehicles get the same multiplier as battery electric vehicles, 3.
Under which law are Corporate Average Fuel Economy norms for passenger vehicles framed in India?
- Motor Vehicles Act, 1988
- Air (Prevention and Control of Pollution) Act, 1981
- Energy Conservation Act, 2001
- Environment (Protection) Act, 1986
Show answer
Answer: (c) Energy Conservation Act, 2001. CAFE norms were notified in 2017 under the Energy Conservation Act, 2001, and are administered by the Bureau of Energy Efficiency under the Ministry of Power.