MoRTH issues draft Central Motor Vehicles (Amendment) Rules, 2026 on 27 April — formally adding E85, E100, and B100 biodiesel for vehicle certification, after India met E20 in 2025.
Why in News
On 27 April 2026, the Ministry of Road Transport and Highways (MoRTH) issued a draft notification amending Rule 115 of the Central Motor Vehicles Rules, 1989 — formally adding E85 (85% ethanol), E100 (near-pure ethanol), B100 biodiesel, and clarified hydrogen-CNG (HCNG) blends to vehicle certification. The draft also formalises E20 (replacing the earlier E10/E reference) and raises gross vehicle weight from 3,000 kg to 3,500 kg in select categories. The move follows India achieving the E20 target in 2025 — five years ahead of the original 2030 timeline. ISMA and WISMA welcomed it as a signal toward flex-fuel vehicles. Comments are open before final notification.
At a Glance
- Issuer
- Ministry of Road Transport and Highways (MoRTH); draft notification dated 27 April 2026
- Title
- draft Central Motor Vehicles (Amendment) Rules, 2026 — amends Rule 115 of CMVR, 1989
- Scope
- adds E85, E100, B100 biodiesel, hydrogen-CNG (HCNG) blends to vehicle certification
- Petrol description revised
- 'E10/E' → 'E10/E20'; biodiesel reference: B10 → B100
- Hydrogen fuel classification revised
- 'Hydrogen + CN' → 'Hydrogen + CNG'
- GVW threshold raised from 3,000 kg to 3,500 kg in select vehicle categories
- E20 target achieved in 2025 — 5 years ahead of original 2030 deadline
- India's ethanol production capacity (March 2026)
- ~20 billion litres
- E20 demand
- ~11 billion litres — surplus capacity drives push to higher blends
- Sugarcane ethanol cuts GHG ~65% vs petrol; maize ethanol ~50% (NITI Aayog study)
- Cumulative forex savings from EBP
- ~₹1.08 trillion since 2014 to 2024
- Initial flex-fuel certification testing could begin as early as December 2026
What changes in the CMVR amendment
The Central Motor Vehicles Rules, 1989 (CMVR) — issued under the Motor Vehicles Act, 1988 — are the core regulatory instrument for vehicle certification, type-approval and emission norms in India. Rule 115 in particular governs emission and fuel norms. The 2026 draft amendment formally inserts certification provisions for E85 (85% ethanol + 15% petrol), E100 (anhydrous near-pure ethanol fuel), and B100 (100% biodiesel) — replacing earlier B10 references. It also clarifies hydrogen-CNG (HCNG) terminology and lifts the gross vehicle weight threshold from 3,000 kg to 3,500 kg in select vehicle categories. Petrol is now described as 'E10/E20' rather than just 'E10/E' — reflecting that E20 has become the operational baseline. The draft is open for public comments before final notification.
Why now — the E20 surplus problem
India achieved its E20 (20% ethanol blending) target in 2025 — five years ahead of the original 2030 deadline set in the 2018 National Policy on Biofuels (and advanced to 2025-26 by the 2022 amendment). The accelerated rollout, supported by guaranteed offtake by OMCs, FCI rice and surplus-grain feedstock, and expanded sugarcane and maize-based capacity, has created a structural surplus: India's ethanol production capacity is ~20 billion litres (March 2026) against E20 demand of ~11 billion litres. Pushing toward E85/E100 absorbs this surplus while supporting farmer income via feedstock demand. Brazil — the global reference for flex-fuel — provides the operational template (E27 baseline, widespread E100 and FFV adoption).
Vehicle compatibility and infrastructure implications
Cars manufactured after April 2023 are E20-compliant and materially compatible with blends up to about 30% ethanol. Higher blends (E85, E100) require redesigned engine components — ethanol introduces higher moisture exposure and accelerated corrosion risk to fuel lines, injectors, gaskets and tank coatings. Adapting a vehicle for E85/E100 is therefore substantial: flex-fuel vehicles (FFVs) typically use modified ECU calibration, stainless or coated fuel-system parts, and adjusted compression ratios. Fuel stations will need separate storage tanks and dedicated dispensers for E85 alongside regular and E20 petrol. Mileage typically drops 5-12% on higher blends due to ethanol's lower energy density per litre — though octane gains can offset this in optimised engines.
Climate, forex, and rural-economy benefits
Ethanol blending addresses three policy goals simultaneously. Climate: sugarcane ethanol cuts GHG emissions by approximately 65% vs petrol, maize-based ethanol by ~50% (NITI Aayog). Forex/energy security: cumulative savings from EBP since 2014 are around ₹1.08 trillion (₹108,000 crore) — significant given India imports ~85% of its crude oil needs. Rural economy: feedstock procurement creates farm-gate demand for sugarcane, maize, and surplus rice (FCI rice now permitted for ethanol production). PM JI-VAN Yojana (Jaiv Indhan-Vatavaran Anukool fasal awashesh Nivaran) supports 2G ethanol projects from agricultural waste/biomass — scaling this remains the next frontier.
Static GK
- •: The Motor Vehicles Act, 1988 is the parent act under which CMVR, 1989 and BS-VI emission norms (effective 2020) operate.
- •: The National Biofuel Coordination Committee (NBCC) is chaired by the Minister for Petroleum and Natural Gas; the Biofuel Steering Committee is chaired by the Secretary, MoPNG.
- •: Under the National Policy on Biofuels, 2018, biofuels are categorised as 1G (sugar/starch crops), 2G (cellulosic biomass), and 3G (algae-based).
- •: FCI was permitted to sell surplus rice for ethanol production — a 2025 policy decision aimed at clearing buffer stocks.
- •: Brazil's Proálcool programme (1975) is the world's pioneer ethanol blending programme; the country mandates E27 baseline.
- •: The US uses E10 as standard; E15 and E85 are available in selected states under the Renewable Fuel Standard.
- •: India's crude oil import dependence is ~85%; oil imports account for the largest single component of merchandise trade deficit.
- •: Ethanol's calorific value (~21 MJ/kg) is lower than petrol's (~44 MJ/kg) — explaining the mileage drop on higher blends.
- •: The Standards and Labelling programme of BEE rates vehicles for fuel efficiency on a 1-5 star scale.
- •: PM Surya Ghar (Free Electricity Scheme), Hydrogen Mission (2023), and EBP together form India's energy-transition triad.
Timeline
- 1988Motor Vehicles Act enacted; CMVR, 1989 issued under it
- 2003Ethanol Blended Petrol (EBP) Programme launched at 5% blending
- 2018National Policy on Biofuels released with E20 target by 2030
- 2019PM JI-VAN Yojana launched for 2G ethanol projects
- 2022National Biofuels Policy amended — E20 target advanced from 2030 to 2025-26
- 2022 (Jun)India achieves E10 (10% blending) target ahead of schedule
- 2023 (Apr)Cars manufactured after this date are E20-material-compatible
- 2025E20 target achieved nationwide — five years ahead of original 2030 deadline
- 27 April 2026MoRTH issues draft Central Motor Vehicles (Amendment) Rules, 2026 — adds E85/E100/B100
- Dec 2026 (planned)Initial flex-fuel certification testing could begin if draft is finalised
- →Draft date: 27 April 2026; amends Rule 115 of CMVR 1989.
- →New: E85, E100, B100 biodiesel, HCNG.
- →EBP launched 2003; E20 target hit 2025 (5 yrs early).
- →National Policy on Biofuels 2018; amended 2022.
- →Petrol description: E10/E → E10/E20.
- →Biodiesel reference: B10 → B100.
- →GVW threshold: 3,000 kg → 3,500 kg in select cats.
- →Ethanol capacity (Mar 2026): ~20 B litres; E20 demand: ~11 B.
- →Sugarcane ethanol: 65% GHG cut vs petrol; maize: 50%.
- →Forex savings since 2014: ~₹1.08 trillion.
- →PM JI-VAN: 2G ethanol scheme; FCI rice now permitted for ethanol.
- →Brazil = global flex-fuel reference (E27 baseline).
- →Ethanol calorific value < petrol → mileage drops 5-12% on higher blends.
Exam Angles
MoRTH has issued draft Central Motor Vehicles (Amendment) Rules, 2026 to allow E85, E100 and B100 fuel certification — after India hit the E20 target in 2025, five years ahead of schedule.
India imports ~85% of its crude oil — making transport-sector decarbonisation a triple-mandate challenge: cut emissions, cut import bill, support farm incomes. The Ethanol Blended Petrol (EBP) Programme launched in 2003 has accelerated dramatically post-2018 under the National Policy on Biofuels, hitting E10 in 2022 and E20 in 2025 — five years ahead of the originally legislated 2030 deadline. The MoRTH 2026 draft now signals the next leg: flex-fuel vehicle certification and a path to E85/E100 absorption.
- From scarcity to surplus in two decadesIndia's ethanol capacity has grown from <1 billion litres in the early 2000s to ~20 billion litres by March 2026 — outstripping E20 demand of ~11 billion litres. This surplus has shifted the policy frame from supply constraints to demand creation. Forex savings of ~₹1.08 trillion since 2014 demonstrate the macro-economic payoff of feedstock domesticisation.
- Food-vs-fuel and water-stress trade-offsSugarcane (the dominant ethanol feedstock) is among India's most water-intensive crops and is grown disproportionately in water-stressed Maharashtra and Karnataka. Diverting FCI surplus rice and maize to ethanol distilleries raises food-security concerns in years of monsoon shortfall. 2G ethanol from agri-waste under PM JI-VAN remains underdeveloped (few projects operationalised) — bridging this gap is essential for ethanol's sustainability claims to hold.
- Flex-fuel + 2G + price disciplineRealising the E85/E100 transition requires (a) flex-fuel vehicle mass market — auto OEMs need cost-parity FFVs, not premium variants; (b) accelerating 2G ethanol via JI-VAN to diversify away from sugarcane; (c) competitive E100 pricing — ISMA's view is that E100 must price at parity with petrol on energy-equivalent basis; (d) dispenser infrastructure rollout at fuel stations. Brazil's Proálcool template (operational since 1975) offers lessons but also cautionary tales on sugar-ethanol price swings.
- Coordination across ministriesEthanol policy spans MoPNG (offtake/pricing), MoRTH (vehicle certification), Ministry of Agriculture (feedstock), MoEFCC (emissions), MoPFP (food processing/distilleries), and DFS (financing). The National Biofuel Coordination Committee under MoPNG is the formal coordination mechanism — but real-time data integration with PMP (Petroleum Planning and Analysis Cell) and on-ground implementation tracking remain weak spots.