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40 CFR § 600.306-12 - Fuel economy label—special requirements for compressed natural gas vehicles.

---
identifier: "/us/cfr/t40/s600.306-12"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 600.306-12 - Fuel economy label—special requirements for compressed natural gas vehicles."
title_number: 40
title_name: "Protection of Environment"
section_number: "600.306-12"
section_name: "Fuel economy label—special requirements for compressed natural gas vehicles."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "Q"
subchapter_name: "ENERGY POLICY"
part_number: "600"
part_name: "FUEL ECONOMY AND GREENHOUSE GAS EXHAUST EMISSIONS OF MOTOR VEHICLES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 32901—23919q, Pub. L. 109-58."
regulatory_source: "41 FR 38685, Sept. 10, 1976, unless otherwise noted."
cfr_part: "600"
---

# 600.306-12 Fuel economy label—special requirements for compressed natural gas vehicles.

Fuel economy labels for dedicated natural gas vehicles must meet the specifications described in § 600.302, with the following modifications:

(a) Include the following statement instead of the statement specified in § 600.302-12(b)(4): “Actual results will vary for many reasons, including driving conditions and how you drive and maintain your vehicle. The average new vehicle gets *a* MPG and costs $*b* to fuel over 5 years. Cost estimates are based on *c* miles per year at $*d* per gasoline gallon equivalent. Vehicle emissions are a significant cause of global warming and smog.” For *a, b,* *c,* and *d,* insert the appropriate values established by EPA.

(b) Include the following elements instead of the information identified in § 600.302-12(c)(1):

(1) The heading “Fuel Economy” near the top left corner of the field.

(2) The combined fuel economy value as determined in § 600.311 below the heading. Include the expression “combined city/hwy” below this number.

(3) The logo specified in § 600.302-12(b)(3)(ii) to the left of the combined fuel economy value.

(4) The units identifier and specific fuel economy ratings to the right of the combined fuel economy value as follows:

(i) Include the term “MPGe” in the upper portion of the designated space.

(ii) Include the city fuel economy value determined in § 600.311 in the lower left portion of the designated space. Include the expression “city” below this number.

(iii) Include the highway fuel economy value determined in § 600.311 in the lower right portion of the designated space. Include the expression “highway” below this number.

(5) The fuel consumption rate determined in § 600.311, to the right of the fuel economy information. Include the expression “equivalent gallons per 100 miles” below the numerical value.

(6) The sub-heading “Driving Range” below the combined fuel economy value. Below this sub-heading, insert a horizontal range bar nominally 80 mm long to show how far the vehicle can drive when fully fueled. Include a vehicle logo at the right end of the range bar. Include the following left-justified expression inside the range bar: “When fully fueled, vehicle can travel about * * *””. Below the right end of the range bar, include the expression “*x* miles”; complete the expression by identifying the appropriate value for total driving range from § 600.311. Include numbers below the bar showing the scale, with numbers starting at 0 and increasing in equal increments. Use good engineering judgment to divide the range bar into four, five, or six increments.

[76 FR 39562, July 6, 2011]