SYLLABUS

GS-3: Conservation, Environmental Pollution and Degradation, Environmental Impact Assessment; Infrastructure: Energy, Ports, Roads, Airports, Railways, etc.

Context: The Ministry of Power has notified new Corporate Average Fuel Economy (CAFE) Norms for passenger vehicles, replacing CAFE-II. They will take effect on 1 April 2027 and remain in force until 31 March 2032. 

Understanding CAFE Norms

• CAFE norms are fleet-level fuel-efficiency standards that regulate the average fuel consumption of a manufacturer's passenger-vehicle fleet rather than imposing the same efficiency limit on every individual vehicle. 

• India introduced CAFE norms under the Energy Conservation Act, 2001, with the Bureau of Energy Efficiency (BEE) playing a key role in their implementation. 

• The framework applies to M1-category passenger vehicles manufactured or imported for sale in India. CAFE therefore allows manufacturers to balance relatively less-efficient vehicles with more fuel-efficient vehicles within their overall fleet. 

• Evolution of CAFE Norms: 

• CAFE-I: Came into effect in 2017–18, with an average fuel-consumption standard of about 5.5 litres/100 km and average CO₂ emissions below 130 g/km. 
• CAFE-II: Came into effect in 2022–23, tightening the benchmark to 4.78 litres/100 km and below 113 g/km. 
• CAFE-III: Further tightens the fleet-average standard annually during 2027–28 to 2031–32.

Key Features of CAFE-III

• Progressively Tighter Targets: The fleet-average fuel-consumption target becomes stricter every year, declining from 3.9960 litres/100 km in 2027–28 to 3.3273 litres/100 km in 2031–32. The target is linked to the manufacturer’s fleet-weighted average vehicle mass. 

• Incentives for Cleaner Vehicles: BEVs and REEVs receive a 3 times super credit, while plug-in/strong hybrids and flex-fuel vehicles receive differentiated credits. This gives manufacturers greater compliance benefit for deploying cleaner powertrains. 

• Carbon-Neutrality Factors: CAFE-III provides specified CO₂ reductions for alternative-fuel vehicles—8% for E20-or-higher petrol vehicles, 22.3% for flex-fuel ethanol vehicles, and 5% or the notified CBG-blending percentage for CNG vehicles, whichever is higher. Diesel vehicles receive a factor linked to the actual notified biofuel blending. 

• Fuel-Saving Technologies: Manufacturers can claim 1 gCO₂/km benefit for each eligible efficiency technology, subject to a maximum benefit of 9 gCO₂/km. 

• These include start-stop systems, tyre-pressure monitoring, regenerative braking, efficient alternators, LED lighting, advanced glazing and efficient air-conditioning. 

• Flexible Compliance: Manufacturers exceeding their annual target earn credits, while those falling short incur debits. 

• Credits can be traded between manufacturers or purchased from BEE, with the buyout price rising from ₹2,500 to ₹4,500 per gCO₂/km over 2027–28 to 2031–32. Compliance is assessed annually within two compliance blocks. 

• No Separate Small-Car Concession: Unlike the earlier draft, the final norms do not provide a separate concession for small petrol cars. 

• However, manufacturers producing/importing fewer than 1,000 eligible vehicles in a reporting period are exempt from the specific fleet target, while still required to report their fuel consumption. 

• Stronger Reporting: From April 2027, manufacturers must report model-level CO₂ performance under both MIDC and WLTP, along with annual state-wise sales data. 

Significance of CAFE-III

• Energy Security: Improving vehicle fuel efficiency can reduce fuel consumption and India's dependence on imported crude oil, strengthening energy security. 

• Lower Carbon Emissions: Tighter fleet-average efficiency standards can reduce fuel consumption and associated CO₂ emissions of the passenger-vehicle sector. 

• Technology Transition: Super credits, CNFs and technology-based compliance benefits provide manufacturers with multiple pathways involving EVs, hybrids, ethanol, CNG/CBG and fuel-saving technologies, rather than prescribing a single technology. 

• Automobile Sector Transformation: By shifting attention from individual models to the overall efficiency of a manufacturer's fleet, CAFE-III is likely to make vehicle mix, powertrain choices, efficiency technologies and compliance management increasingly important to automobile manufacturers.