Approval Details

Valid E.O.


This Executive Order approved the specified parts on on August 31, 2004.
As of Monday, October 14th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
XJ-22011987-1995 Jeep Cherokee 4.0 L

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-577-1
  • Executive Order 577-1 / D577-1
  • ARB # D-577-1
  • Executive Order No: D-577-1
  • C.A.R.B. No. D-577-1
  • Resolution D-577-1
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-577-1 PDF

D-577-1 Document:


                                        State of California
                                    AIR RESOURCES BOARD

                                   EXECUTIVE ORDER D—577—1

                           Relating to Exemptions Under Section 27156
                                      of the California Vehicle Code

                                      Jeep Cherokee Air Tube

    Pursuant to the authority vested in the Air Resources Board by Section 27156 of the
    Vehicle Code; and

    Pursuant to the authority vested in the undersigned by Section 39515 and Section
    39516 of the Health and Safety Code and Executive Order G—02—003;

    IT IS ORDERED AND RESOLVED: That the installation of the Jeep Cherokee Air Tube,
    produced and marketed by XJ—Armor of 3505 West Edison Way, Menlo Park, CA
    94025, has been found not to reduce the effectiveness of the applicable vehicle
    pollution control systems and, therefore, is exempt from the prohibitions of Section
    27156 of the Vehicle Code for the 1987 to 1995 Jeep Cherokee 4.0 liter (p/n XJ—2201).

    The Jeep Cherokee Air Tube includes the following main components: open—element
    reusable air filter, intake system tubing, crankcase ventilation hose (as applicable, which
    may be silicone, and a color other than black), and hardware. Disconnection of the
    thermostatic air cleaner system is permitted for installation on 1989—1990 models.

     This Executive Order is valid provided that the installation instructions for the Jeep
    Cherokee Air Tube will not recommend tuning the vehlcle to specifications different from
    those of the vehicle manufacturer.

    Changes made to the design or operating conditions of the Jeep Cherokee Air Tube, as
    exempt by the Air Resources Board, which adversely affect the performance of the
    vehicle‘s pollution control system shall invalidate this Executive Order.

    This Executive Order shall not apply to any Jeep Cherokee Air Tube advertised, offered
    for sale, sold with, or installed on a new motor vehicle prior to or concurrent with transfer
    to an ultimate purchaser.

    Marketing of the Jeep Cherokee Air Tube using any identification other than that shown
    in this Executive Order or marketing of the Jeep Cherokee Air Tube for an application
    other than those listed in this Executive Order shall be prohibited unless prior approval
    is obtained from the Air Resources Board.

    This Executive Order does not constitute any opinion as to the effect the use of the
    Jeep Cherokee Air Tube units may have on any warranty either expressed or implied by
    the vehicle manufacturer.

  This Executive Order is granted based on an engineering evaluation of the Jeep
  Cherokee Air Tube‘s emissions impact when tested according to the Cold—Start CVS—75
_ Federal Test Procedure. However, the ARB finds that reasonable grounds exist to
  believe that use of the Jeep Cherokee Air Tube may adversely affect emissions of
  motor vehicles when operating under conditions outside the parameters of the CVS—75
  Federal Test Procedure. Accordingly, the ARB reserves the right to conduct additional
 emission tests, in the future, as such tests are developed, that will more adequately
  measure emissions from all cycle phases. If such test results demonstrate that the
 Jeep Cherokee Air Tube adversely affects emissions during off—cycle conditions
 (defined as those conditions which are beyond the parameters of the Cold—Start CVS—75
 Federal Test Procedure), this Executive Order shall be effectively rescinded as of the
 date the test results are validated.

 If evidence provides the ARB with reason to suspect that the Jeep Cherokee Air Tube
 will affect the durability of emission control systems, XJ—Armor shall be required to
 submit durability data to show that the durability of vehicle emission control systems are
 not, in fact, affected and/or that the add—on or modified part demonstrates adequate

 The ARB reserves the right in the future to review this Executive Order and the
 exemption provided herein to assure that the exempted add—on or modified part
 continues to meet the standards and procedures of Title 13, California Code of
  Regulations, Section 2222, et seq.


 No claim of any kind, such as "Approved by the Air Réédurces Board", may be made
 with respect to the action taken herein in any advertising or other oral or written

 Violation of any of the above conditions shall be grounds for revocation of this order.
 The order may be revoked only after a ten—day written notice of intention to revoke the
 order, in 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 hearing that grounds for revocation exist.
                           Baen:               sT
 Executed at El Monte, California, this   S/          day of August 2004.

                                   lenJYFons, Chief
                                 Mobile Source Operations Division
                       XJ—ARMOR — JEEP CHEROKEE AIR TUBE — D—577—1

Document Created: 2005-09-01 12:41:27
Document Modified: 2005-09-01 12:41:27

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