40 CFR 1030.20 - Fuel efficiency metric.

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

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View all text of Part 1030 [§ 1030.1 - § 1030.110]

§ 1030.20 - Fuel efficiency metric.

For each airplane subject to this part, including an airplane subject to the change criteria of § 1030.35, a fuel efficiency metric value must be calculated in units of kilograms of fuel consumed per kilometer using the following equation, rounded to three decimal places:

Where:

SAR = specific air range, determined in accordance with § 1030.23.

RGF = reference geometric factor, determined in accordance with § 1030.25.