Full Breakdown
India’s CAFE-III Fuel-Efficiency Norms: Rules, Incentives and Industry Response
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New CAFE-III Framework
The Ministry of Power notified the third phase of Corporate Average Fuel Economy (CAFE-III) for passenger vehicles on September 29. The rules apply to all new M-category vehicles manufactured or imported for sale in India from April 1 2027 through March 31 2032. The fuel-consumption benchmark tightens from 3.996 L/100 km in FY 28 to 3.327 L/100 km in FY 32 – about a 16.7 % improvement. The reference fleet weight rises to 1,229 kg, and the annual multiplier ‘a’ falls from 0.00158 to 0.00131, flattening the weight-adjusted curve.
Background & Context
India introduced CAFE standards in 2017 under the Energy Conservation Act. Drafts in 2024-2026 debated a concession for petrol cars <= 909 kg. Maruti Suzuki sought a 3 g CO2/km deduction; Tata Motors, JSW MG Motor and others opposed, saying it would favour a single player. The final notification removed the separate concession and altered the weight formula, giving lighter fleets broader relief while tightening targets for heavier SUVs.
Data & Statistics
- Targets: 3.996 -> 3.327 L/100 km (FY 28 -> FY 32).
- Reference weight: 1,229 kg (? 13.6 %).
- Super-credit factors: 3× for BEVs/REEVs, 2.5× for plug-in hybrids, 1.6× for conventional hybrids, 1.1× for flex-fuel ethanol.
- Carbon-neutrality factors: 8 % for E20-plus petrol, 22.3 % for flex-fuel ethanol, >= 5 % for CNG/biogas.
- Technology credits: 1 g CO2/km per eligible feature, capped at 9 g CO2/km.
- Credit-debit pricing: Rs 2,500 per g CO2/km in FY 28, rising to Rs 4,500 in FY 32.
Official Statements & Responses
The Ministry of Power called the revised line “more balanced, weight-sensitive,” noting softer targets for lighter vehicles and stricter ones for heavier models. MoRTH will enforce testing, reporting and carbon-neutrality calculations and will later issue the conversion factor for moving targets from the Modified Indian Driving Cycle (MIDC) to the Worldwide Harmonized Light Vehicles Test Procedure (WLTP).
Criticism & Opposition
Industry players questioned the Bureau of Energy Efficiency’s role in selling compliance credits, arguing a regulator should not trade in the market it oversees. Tata Motors and JSW MG Motor warned that a carve-out would disproportionately benefit Maruti’s segment, prompting intervention from the Prime Minister’s Office.
Why It Matters
The weight-adjusted formula shifts competitive dynamics. Manufacturers with light portfolios—Maruti Suzuki, Renault, Nissan—gain headroom, while firms reliant on heavy SUVs—Mahindra and diesel-focused players—face tighter limits. Super-credits let BEVs and REEVs offset less-efficient models, but the coexistence of hybrid, ethanol-flex and CNG pathways may dilute the push toward zero-emission cars, affecting India’s decarbonisation trajectory.
What’s Next
- From April 1 2027, manufacturers must report each model’s fuel-consumption performance under both MIDC and WLTP.
- Credit trading and BEE buy-outs are permitted each year during the October 1 – October 31 window.
- The Designated Agency must submit the final compliance passbook to the BEE by November 30 of each assessment year.
- The WLTP conversion factor will be announced separately, shaping the ultimate stringency of the CAFE-III regime.