The executive brief
The decision in front of the business.
01S.O.5346(E) applies to M1 vehicles for 1 April 2027–31 March 2032. The manufacturer standard is a × (W − b) + c; W is weighted average unladen mass. The c constants fall from 3.9960 to 3.3273 litres/100 km across the five years, rather than being one universal fleet limit. The framework provides technology and vehicle-type credit mechanisms. S.O.5436(E) corrects the designated credit-trading window to thirty-one days, 1–31 October.
02OEMs should model their actual portfolio, vehicle weights and permitted credits together. The business decision is the mix of product development, fuel efficiency, electrification and other eligible technologies that meets the manufacturer’s applicable target. A headline number alone cannot establish compliance or the commercial value of a technology.
03Calculate portfolio-specific targets and document the eligible technology assumptions.
- First published
- Underlying event
- Source checked
Industry, model and participation details
Transport, Logistics & MobilityPower, Energy & RenewablesMinistry of Power · Responsible institutionEffective from 1 April 2027
Development context
The facts that shape the opportunity.
Operative development
S.O.5346(E) applies to M1 vehicles for 1 April 2027–31 March 2032. The manufacturer standard is a × (W − b) + c; W is weighted average unladen mass. The c constants fall from 3.9960 to 3.3273 litres/100 km across the five years, rather than being one universal fleet limit. The framework provides technology and vehicle-type credit mechanisms. S.O.5436(E) corrects the designated credit-trading window to thirty-one days, 1–31 October.
Ministry of Power · Gazette text reproduced by PolicyIndex ↗Ministry of Power · Gazette text reproduced by Gazette Tracker ↗TLGS assessment
Commercial and operating implications.
Commercial implications
OEMs should model their actual portfolio, vehicle weights and permitted credits together. The business decision is the mix of product development, fuel efficiency, electrification and other eligible technologies that meets the manufacturer’s applicable target. A headline number alone cannot establish compliance or the commercial value of a technology.
Implementation priorities
Technology suppliers can position around measurable efficiency improvements and the manufacturer’s documentation requirements. Product planning should connect type-approval data, sales forecasts and compliance accounting. Credit mechanisms and the future start date need to be reflected in governance and investment decisions; the notification does not establish a supplier order.
From insight to action
Priorities for leadership.
Automotive manufacturers and technology providers
Calculate portfolio-specific targets and document the eligible technology assumptions.
Commercial and compliance teams
Assign ownership for type-approval evidence, sales data and compliance accounts.
Project and policy milestones
What changes the next decision.
Implementation methodologies, subsequent notifications and manufacturer-specific records govern the compliance plan.
Reference documents
Sources and further reading.
- Gazette text reproductionS.O.5346(E) · CAFE 2027–32 · 29 September 2026 ↗Ministry of Power · Gazette text reproduced by PolicyIndex · 29 September 2026
Operative instrument text reproduced from the identified Gazette; statutory scope and dates checked against the text.
- Gazette text reproductionS.O.5436(E) · corrections to CAFE notification ↗Ministry of Power · Gazette text reproduced by Gazette Tracker · 2 October 2026
Operative instrument text reproduced from the identified Gazette; statutory scope and dates checked against the text.