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India Proposes Revised Vehicle Emissions Norms

Published on: 30-Sep-2025

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India Proposes Revised Vehicle Emissions Norms

Article Summary

Key Notes on India's Proposed CAFE 3 Norms

Overview

  • CAFE Norms: Corporate Average Fuel Efficiency (CAFE) norms regulate fuel consumption and emissions from passenger vehicles.
  • Draft Issued by: Bureau of Energy Efficiency (BEE) for public consultation.

Proposed Changes in CAFE 3 Norms

Target Audience

  • Applicable Vehicles: M1 category vehicles (passenger cars with a max weight of 3,500 kg and seating capacity of 9 including the driver).

New Concepts Introduced

  • Pooling Mechanism: Allows multiple car manufacturers to pool their emissions to meet regulatory targets collectively.
  • Super Credits for EVs: Each electric vehicle (EV) sold counts as multiple sales towards meeting targets, e.g., each EV gets counted three times.

Efficiency Calculation

  • Efficiency Formula: [ \text{Efficiency} = [0.002 \times (W - 1170) + c] ]
    • (W): Average fleet weight.
    • (c): A decreasing constant from FY28 (3.7264) to FY32 (3.0139).

Sales Impact for Small Cars

  • Exemptions for Small Cars: Additional 3.0 g CO₂/km reduction for small cars (<909 kg, ≤1200 cc, ≤4000 mm length) to boost sales, given a 71% decline over six years.
  • GST Reform: GST rate on small cars decreased from 28% to 18% to enhance accessibility.

Impact on Electric Vehicles

  • Carbon Neutrality Factor (CNF): Benefits based on fuel type used:
    • E20 to E30 petrol: 8% CNF.
    • Flex-fuel ethanol and strong hybrids: 22.3% CNF.
    • CNG and CBG vehicles: Highest of 5% or notified blending percentage.

Compliance and Governance

  • Annual Average Fuel Consumption Standard: Manufacturers required to meet fuel consumption of no more than 4.78 liters/100 km and max 113 grams CO₂/km for 2022-23.
  • Legal Accountability: A designated Pool Manager responsible for compliance and penalties under the Energy Conservation Act, 2001.

Historical Context

  • Initial Introduction: CAFE norms were first introduced in 2017, targeting fuel efficiency and reduction of carbon emissions from numerous vehicle types (including EVs).

Strategic Goals

  • Environmental Focus: Aimed at minimizing air pollution and reducing oil dependency.
  • Market Competitiveness: Aligning emission norms with global best practices (comparisons made with USA, China, EU, and Japan).

Conclusion

The proposed CAFE 3 norms are a significant step towards promoting environmentally friendly vehicles while ensuring that the domestic automotive industry remains competitive and compliant with global standards. The adjustments, particularly in favor of small cars and EVs, reflect an evolving policy response to market dynamics and environmental responsibilities.

Key Terms & Concepts

Corporate Average Fuel Efficiency (CAFE)Key vehicle emissions standards
Bureau of Energy Efficiency (BEE)Regulatory body issuing norms
M1 category vehiclesPassenger car classification
3,500 kilogramsMaximum vehicle weight limit
3.7264 to 3.0139Constant for emissions standards
71% decline in salesDecline in small car sales
GST 2.0 reformsReduced tax rate on cars
28% to 18%GST rate reduction
Energy Conservation Act, 2001Legal framework for compliance
4.78 litres per 100 kmFuel consumption target
113 grams per kmCO2 emissions target
Electric Vehicles (EVs)Beneficiaries of emission credits
E20 to E30Petrol ethanol blend standard

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