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This Executive Order may be listed as:
  • C.A.R.B.E.O. D-184-15
  • Executive Order 184-15 / D184-15
  • ARB # D-184-15
  • Executive Order No: D-184-15
  • C.A.R.B. No. D-184-15
  • Resolution D-184-15
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-184-15 PDF

D-184-15 Document:


CARB_D-184-15

                                    State of California
                                 AIR RESOURCES BOARD

                            EXECUTIVE ORDER D—184—15

                          Relating to Exemptions under Section 27156
                                  of the Vehicle Code

                       Maremont Exhaust Division of ArvinMeritor

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 converter from the
prohibitions of Vehicle Code Section 27156.

WHEREAS, Maremont Exhaust Division of ArvinMeritor (Maremont) of 2400 Maremont
Parkway, Loudon, Tennessee 37774, has applied to the ARB for exemption from the
prohibitions in Vehicle Code Sections 27156 and 38391 to market its new aftermarket catalytic
converter for the following applications, except for vehicles equipped with on—board diagnostic II
(OBD—I1) systems (Title 13, CCR, Section 1968.1):

Converter Type    Series Number     Converter Use     Max. Eng. Size         Max. Veh. Test Wt.
TWC + OC          38730             TWC + OC          5.9L (360 CID)         7,000 lbs. (GVWR =
                                                                             8760 lbs.)
TWC + OC          38720             TWC               7 AL (454 CID)         7,000 Ibs. (GVWBR=
                  (Carry—over)                                               8081 Ibs.)
TWC + OC          38710             OC                7.5L (460 CID)         7,000 lbs. (GVWLR =
                  (Carry—over)                                               8954 lbs.)

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 AlliedSignal Environmental Catalyst using its
ARL—102 bench—aging cycle 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 Automotive Testing and Development Services, Inc.
(ATDS), Ontario, California, using a 1989 Dodge B350 Van 5.9L, a 1994 Chevrolet Suburban
7.AL, and a 1979 Ford F150 Ranger 7.5L showed the following conversion efficiencies which
meet the minimum requirements for new aftermarket catalytic converters:


                                                 «2.


Poltution           Min. Required        Series 38730 —       Series 38720 —       Series 38710 —
Component           Conv. Efficiency     TWC + OC             TWC                  OC
HC                  70 %                 83.7 %               77.9 %               86.7 %
CO                  70                   84.7                 74.9                 96.7
NOx                 50/60 %              86.2                 77.8                 —

IT IS HEREBY RESOLVED that the above catalytic converter is exempt from the prohibitions in
Vehicle Code Section 27156 for installation on the applicable vehicles 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 Executive 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 devices.

              Any oral or written references to this Executive Order or its content by Maremont
              Exhaust Division, its principals, agents, employees, distributors, dealers, or other
              representatives must include the disclaimer that the Executive Order and the
              exemption it provides are 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 27156.

              Maremont Exhaust Division‘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.




MAREMONT EXHAUST DIVISION — CATALYTIC CONVERTER — D—184—15


                                                —3.

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 /éfl/ day of April 2002.




                                  Allen Eyons, Chief
                                  New Vehicle/Engine Programs Branch




MAREMONT EXHAUST DIVISION — CATALYTIC CONVERTER — D—184—14


                                       EVALUATION SUMMARY

Manufacturer Name: Maremont Exhaust Division of ArvinMeritor

Name of Device: Series 38730 Three—way plus oxidation catalytic converter (TWC + OC).

Background:
             Maremont Exhaust Division of ArvinMeritor (Maremont), 2400 Maremont Parkway,
Loudon, Tennessee 37774, has applied for an exemption from the prohibitions in Section 27156
of the California Vehicle Code (VC) for its series 38730 new aftermarket TWC + OC. Carry—over
tests were also performed with the converter for three—way catalytic converter (TWC) and
oxidation catalytic converter (OC) applications. The TWC + OC is also assigned the series
numbers 38720 and 38710 for TWC and OC applications, respectively.

Recommendation:
             Grant exemption to Maremont as requested, and issue Executive Order
D—184—15.

Device Description:
            Maremont‘s new aftermarket TWC + OC uses two oval—shaped ceramic monolith
substrates. The substrates are coated with platinum and rhodium in the ratio of 5:1. The
dimensions of the substrates are 5.70 inches for the major axis, 3.20 inches for the minor axis,
and 3.00 inches in length. The substrates are contained in a shell constructed from 409—grade
stainless steel. The substrates are wrapped with Unifrax XPE paper to prevent vibration and
exhaust by—pass. The shell is sealed by seam weld. A piece of aluminized heat shield is spot—
welded to the upper side of the converter to protect the vehicle underbody from excessive heat.
The catalyst may be sold as a unit with installation instructions or may be used in customized
direct fit exhaust applications. It is sold with a warranty for 25,000 miles on the substrate, and
five years or 50,000 miles on the container or shell, and the end pipes.
              AlliedSignal Environmental Catalyst (ASEC) is the catalyst supplier for Maremont‘s
catalytic converter.

Discussion/Basis for Exemption Recommendation:
                 Maremont submitted data on the series 38730 TWC + OC, 38720 TWC, and
38710 OC from testing conducted at Automotive Testing and Development Services (ATDS),
Ontario, California. Two oval test catalysts were bench—aged by ASEC using its ARL—102
bench—aging cycle for a period of 90 hours. ASEC shipped the aged catalysts directly to ATDS
for the emission testing. The emission tests were conducted using a 1989 Dodge B350 Van
5.9L for the TWC + OC application, a 1994 Chevrolet Suburban 7.4L for the TWC application,
and a 1979 Ford F150 Ranger 7.5L for the OC application.
              The evaluation of the series 38730, 38720, and 38710 catalytic converters is solely
based on the bench—aging performed by ASEC and emission tests conducted at ATDS. The
limits of application of the new catalytic converter are 5.9L/7,000 Ibs. for the series 38730 TWC
+ OC, 7.4L/7,000 lbs. for series 38720 TWC, and 7.5L/7,000 Ibs. for series 38710 OC. The
corresponding maximum gross vehicle weight rating (GVWR) are 8760 Ibs., 8081 lIbs., and
8954 Ibs. The test catalysts were labeled 315793—1 and 315793—2. Testing consisted of two
cold—start CVS—75 tests with a simulator ("dummy" catalyst), followed by two cold—start CVS—75
tests for each of the two test catalysts. The overall conversion efficiencies of Maremont‘s series
38730, 38720, and 38710 are the average of the conversion efficiencies of the two catalysts for
each application.      The test results for the catalytic converter are shown below.


               Automotive Testing and Development Services, Ontario, California

                                     Conversion Efficiency (%)

                                            TWC + OC

           Simulator      315793—1      315793—2      Average Conversion Efficiency

HC (g/imi) 2450           0.390         0.406          83.7
CO (g/mi) 52.016          7.672         8.149          84.7
NOx (g/mi) 4.197          0.753         0.804          86.2
                                                TW
HC (g/imi) 2.002          0.420        0.464           77.9
CO (g/mi) 34.714          8.815        8.615           74.9
NOx (g/mil) 7.287         1.534        1.694           77.8
                                                OC
HC (g/imi) 2.016          0.258        0.277           86.7
CO (g/mi) 85.891          2.352        3.348           96.7
NOx (g/mi) 3.334          2.216        2.048            —

The above test results meet the minimum requirements of the California regulations on new
aftermarket catalytic converters. The Air Resources Board (ARB) did not conduct confirmatory
tests on the new aftermarket catalytic converters.



Document Created: 2011-09-12 14:52:38
Document Modified: 2011-09-12 14:52:38

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