The CAFE III norms, as proposed in the latest draft, aim to regulate which of the following?

Fuel efficiency and tailpipe carbon dioxide emissions of passenger vehicles

Maximum retail price of electric vehicles

Mandatory blending percentages for petrol and diesel

Import duties on luxury automotive components

Under the proposed CAFE III framework, what is the primary purpose of 'Carbon Neutrality Factors' (CNFs)?

To recognise the lower lifecycle carbon footprint of biofuels like ethanol and CBG

To increase the tax burden on heavy SUV manufacturers

To provide subsidies for the export of fuel-efficient vehicles

To mandate the exclusive use of electric batteries in new vehicles

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17 July 2026

Revised CAFE III fuel efficiency norms

The CAFE III norms represent a significant national policy intervention in the automotive sector, directly impacting industrial policy, environmental regulation, and the transition to sustainable energy.

Notes

The Ministry has released the third draft of Corporate Average Fuel Efficiency (CAFE III) norms for passenger vehicles.
Implementation is scheduled to commence from April 2027.
The draft introduces Carbon Neutrality Factors (CNFs) to account for the lower lifecycle carbon footprint of biofuels like ethanol and compressed biogas (CBG).
Manufacturers can claim reductions in declared tailpipe CO2 emissions based on the use of renewable fuels.
The proposal features a flatter weight-adjustment curve, reducing the compliance advantage previously held by heavier SUVs.
Fleet-wide emission targets have been relaxed by approximately 21% compared to the original September 2025 proposal.
Target fuel consumption is set to tighten from 3.996 litres/100 km (94.76 gCO2/km) in 2027-28 to 3.327 litres/100 km (78.90 gCO2/km) by 2031-32.
Compliance assessment will shift from an annual cycle to two blocks: an initial three-year period followed by a two-year period.

Part of a longer story

This is day 6 of 21 in Safety and implementation of E20 ethanol-blended fuel, which has been running since 5 July 2026. Reading it whole is usually worth more than reading today alone — the exam asks how something developed.

Questions

Discuss the significance of incorporating Carbon Neutrality Factors (CNFs) in the revised CAFE III fuel efficiency norms for India's transition to sustainable mobility. 150 words

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How do the revised CAFE III norms balance the competing interests of the automotive industry with the national objective of reducing vehicular carbon emissions? Analyze the impact of the proposed weight-adjustment curve and block-based compliance mechanism. 250 words

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Prelims

The CAFE III norms, as proposed in the latest draft, aim to regulate which of the following?

Under the proposed CAFE III framework, what is the primary purpose of 'Carbon Neutrality Factors' (CNFs)?

Syllabus

Topics

Sources

Revised CAFE III unveiledfor stakeholder suggestions

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