Approval Details

Valid E.O.


This Executive Order approved the specified parts on on January 28, 2003.
As of Friday, September 20th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts


This Executive Order may be listed as:
  • C.A.R.B.E.O. D-546
  • Executive Order 546 / D546
  • ARB # D-546
  • Executive Order No: D-546
  • C.A.R.B. No. D-546
  • Resolution D-546
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-546 PDF

D-546 Document:

                                                                          (Page 1 of 3)

                                   State of California
                              AIR RESOURCES BOARD

                             EXECUTIVE ORDER D—546
                     Relating to Exemptions under Section 27156
                                  of the Vehicle Code

                       BOSAL MEXICO SA DECV

WHEREAS, Vehicle Code Sections 27156 and 38391, and Title 13, California Code of
Regulations (hereafter "CCR") Section 2222(h), authorize the California Air Resources
Board (ARB) and its Executive Officer to exempt new aftermarket catalytic converters from
the prohibitions of Vehicle Code Section 27156.

WHEREAS, Bosal Mexico SA DECV (Bosal Mexico) of Acceso 1, 126 Frace., Ind. La
Montana, Queretero, QRO Mexico CP 76150, has applied to the ARB for exemption from the
prohibitions in Vehicle Code Sections 27156 and 38391 to market their new aftermarket
series 06000/R6000 three—way plus oxidation catalytic converter (TWC + OC) for the
following application, except for vehicles equipped with an on—board diagnostic II (OBD—I1)

Converter Type   Series Number        Converter Use      Max. Eng. Size   Max. Veh. Test Wt.
TWC + OC         06000 (Oval)         TWC + OC           5.9L (360 CID)   6,000 Ibs. (GVWBR =
                 R6000 (Round)        TWC + OC                            7,140 lbs.)
                 06000 (Oval)         TWC
                 R6000 (Round)        TWC

WHEREAS, 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—02—003, the ARB finds that the above
aftermarket catalytic converter complies with the California Vehicle Code Section 27156 and
Title 13, California Code of Regulations, Section 2222(h). Emission performance of the
catalytic converter was based on durability bench—aging by DMC—2 Division of OMG
Corporation using the ARB—modified RAT—A bench—aging cycle for a duration of 50 hours, in
lieu of the AMA driving cycle (Reference Appendix IV, Title 40, part 86, Code of Federal
Regulations (June 28, 1977)).

WHEREAS, emissions tests conducted at Motorola AIEG laboratory, Dearborn, Michigan,
using a 1990 5.9L Dodge Ram Van, and a 1994 5.9L Dodge Pickup 2500 showed the
following conversion efficiencies which meet the minimum requirements for new aftermarket
catalytic converters:




                                            Catalyst Application Type

Pollution Component                           TWC + 0C       _TWC
HC: Min. Requirement                         70%             70
    Bosal‘s series O6000/R6000               76.6            78.9
CO: Min. Requirement                         70             —70
     Bosal‘s series O6000/R6000              74.9            77.4
NOx: Min. Requirement                        50              60
     Bosal‘s series ©6000/R6000              61.4            78.3

IT IS HEREBY RESOLVED that the above catalytic converter is exempt from the prohibitions
in Vehicle Code Section 27156for installation on the approved vehicle applications subject to
the following conditions:

       1.    No changes are permitted to the catalytic converter as described in the
             application for exemption. Any changes to the catalytic converter 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.

             Marketing of the catalytic converter using identifications other than those shown
             in the exemption application, and in this Executive Order, or marketing of the
             catalytic converter for application other than the ones shown 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 catalytic converter as individual

             Any oral or written references to this Executive Order or its content by Bosal
             Mexico, 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 emission
             reduction claims for the catalytic converter and is only a finding that the
             catalytic converter is exempt from the prohibitions of Vehicle Code Section

             Bosal Mexico SA DECYV‘s installation instructions for the new catalytic converter
             must conform to requirements in Paragraphs | and IX of California Evaluation
             Procedures for New Aftermarket Non—Original Equipment Catalytic Converters.

             Upon installation, the catalytic converter must carry a manufacturer‘s warranty
             for 25,000 miles on the substrates and 50,000 miles or five years on the shell
             and end pipes.



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 hearing, that
grounds for revocation exist.

Executed at El Monte, California, this fif{day of January 2003.

                                    Allé Lyons, Chief
                                    Mobile Source Operations Division


Document Created: 2005-09-01 12:44:21
Document Modified: 2005-09-01 12:44:21

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