fuel economy standards
Refers to official or regulatory standards for vehicle fuel efficiency, often used in automotive, environmental, or policy contexts.
New fuel economy standards will be introduced from next year.
This car meets the latest fuel economy standards.
燃費 means 'fuel efficiency' or 'gas mileage' in general, while 燃費基準 specifically refers to the regulatory standards or benchmarks for fuel economy.
Compound of 燃費 (fuel efficiency) and 基準 (standard, criterion).