Approval Details

Valid E.O.


This Executive Order approved the specified parts on on September 1, 1998.
As of Monday, October 21st, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

1998 and older diesel powered vehiclesUses coolant temperature to heat incoming fuel

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-253-4
  • Executive Order 253-4 / D253-4
  • ARB # D-253-4
  • Executive Order No: D-253-4
  • C.A.R.B. No. D-253-4
  • Resolution D-253-4
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-253-4 PDF

D-253-4 Document:

                                                                      (Page 1 of 2)

                                         State of California
                                         AIR RESOURCES BOARD

                                       EXECUTIVE ORDER D—253—4
                             Relating to Exemptions Under Section 27156
                                         of the Vehicle Code

                                   FUEL EFFICIENCY SYSTEMS, INC.
                                 "THERMAL—CHARGER SYSTEM TC—(4—30)"

      WHEREAS, Vehicle Code Sections 27156 and 38391, and Title 13, California Code of
      Regulations (hereafter "CCR") Section 2222(e), authorize the California Air
      Resources Board (ARB) and its Executive Officer to exempt add—on and modified
      aftermarket devices from the prohibitions of Vehicle Code Section 27156.

      WHEREAS,   Fuel Efficiency Systems, Inc. of 11470 Sunrise Gold Circle, Suite 7,   Rancho
      Cordova,   California 95742, has applied to the ARB for exemption from the
      prohibitions in Vehicle Code Sections 27156 and 38391 for their Thermal—Charger
      System for installation on 1998 and older model—year heavy—duty vehicles powered by
      a diesel engine utilizing liquid coolant.

      wWHEREAS, pursuant to the authority vested in the Executive Officer by Health and
      Safety Code Section 39515 and in the Chief, Mobile Source Operations Division by
      Health and Safety Code Section 39516 and Executive Order G—45—9, the ARB finds that
      the above add—on device complies with the California Vehicle Code Section 27156 and
      Title 13, California Code of Regulations.    It was determined through engineering
      evaluation that the device will not reduce the effectiveness of the pollution
      control system of applicable vehicles.  However, the ARB has found no evidence,
      based on sound engineering principles or through emissions data submitted by the
      manufacturer, that the Thermal—Charger can produce significant emission benefits.

      It has not been determined what effect the use of the Thermal—Charger System may
      have on any warranty, either expressed or implied, by the manufacturer of a diesel
      engine or a motor vehicle on which the device is installed.

      IT IS HEREBY RESOLVED that the above Thermal—Charger System is exempt from the
      prohibitions in Vehicle Code Section 27156 for installation on the approved
      application vehicles subject to the following conditions:

      1.   No changes are permitted to the Thermal—Charger System as described in the
           application for exemption, which includes use of appropriate temperature
           control to maintain fuel at engine manufacturer‘s recommended operating
           temperature.    Any changes to the Thermal—Charger System or any of   its
           components, and other factors addressed in this order must be evaluated and
           approved by the ARB prior to marketing in California.

      2.   Marketing of the Thermal—Charger System using identifications other than those
           shown in this Executive Order or marketing of the Thermal—Charger System for
           application other than the one listed in this Executive Order shall be
           prohibited unless prior approval is obtained from the ARB.  Exemption of this
           product shall not be construed as an exemption to sell, offer for sale, or
           advertise any components of the Thermal—Charger System as individual devices.

      3.   Any oral or written references to this Executive Order or its content by Fuel
           Efficiency Systems, Inc., its principals, agents, employees, distributors,
           dealers,   or other representatives must include the disclaimer that the
           Executive Order or the exemption it provides is not an endorsement or approval
           of any emissions reduction claims for the Thermal—Charger System and is only a
           finding that the Thermal—Charger System is exempt from the prohibitions of
           Vehicle Code Section 27156.

    FUEL EFFICIENCY SYSTEMS, INC.                           EXECUTIVE ORDER D—253—4
    "THERMAL—CHARGER SYSTEM TC—(4—30)"                      (Page 2 of 2)

    CHARGER SYSTEM.                                                                      '

    Violation of any of the above conditions shall be grounds for revocation of this
    order.  The order may be revoked only after ten day written notice of intention to
    revoke it,   during which period the holder of the order may request in writing a
    hearing to contest the proposed revocation.       If a hearing is requested, it shall be
    held within ten days of receipt of the request, and the order may not be revoked
    until a determination is made, after the hearjamg, that grounds for revocation exist.

    Executed at El Monte,   California,    this        ay of September 1998.

                                          R.B. Summerfield, Chief
                                          Mobile Source Operations Division

Document Created: 2005-09-01 12:41:16
Document Modified: 2005-09-01 12:41:16

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