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As of Wednesday, February 5th, 2025 this Executive Order has not been overturned or superceeded. Warning: This Executive Order record has not yet been synced with arb.parts system.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-184-16
  • Executive Order 184-16 / D184-16
  • ARB # D-184-16
  • Executive Order No: D-184-16
  • C.A.R.B. No. D-184-16
  • Resolution D-184-16
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Download: Executive Order D-184-16 PDF

D-184-16 Document:

CARB_D-184-16

State’ of California AlIR RESOURCES BOARD EXECUTIVE ORDER D—184—16 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 series 38730 new aftermarket three—way plus oxidation (TWC + OC) catalytic converter as a 2—by—1 replacement on the following Ford trucks and vans, except for vehicles equipped with on—board diagnostic II (OBD—I1) systems (Title 13, CCR, Section 1968.1) and close—coupled catalytic converters: Converter Type Series Number Converter Use Max. Eng. Size Max. Veh. Test Wt. TWC + OC 38730 TWC + OC 5.8L (351 CID) 7,000 lbs. (GVWR = 9278 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 Appendlx 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 1984 5.8L Ford E—150 Van showed the following conversion efficiencies which meet the minimum requirements for new aftermarket catalytic converters: Pollution Min. Required Series 38730 — Component Conv. Efficiency TWC + OC HC 70 % 79.7 % CO 70 72.0 NOx 50 60.7

9. T 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 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 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. The catalytic converter should not be advertised as a "free—flow" catalytic converter, with respect to the 2—by—1 replacement, by Maremont, any of its employees, or any other businesses associated with the marketing of the catalytic converter. MAREMONT EXHAUST DIVISION — CATALYTIC CONVERTER — D—184—16

—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 3AP day of September 2002. Mobile Source Operations Division MAREMONT EXHAUST DIVISION — CATALYTIC CONVERTER — D—184—16

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) to market its series 38730 new aftermarket TWC + OC for a 2—by—1 replacement on Ford trucks and vans. The applicable vehicles are those certified with dual exhaust banks, each having a TWC in series with an OC, with air injection into the middle of the catalytic converters. The vehicles are non—OBD—!I equipped and are not certified with close—coupled catalytic converters. Recommendation: Grant exemption to Maremont as requested, and issue Executive Order D—184—16. 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. The catalytic converter was previously exempted for one—on—one replacement under Executive Order D—184—15. AlliedSignal Environmental Catalyst (ASEC) is the catalyst supplier for Maremont‘s series 38730 TWC + OC. Discussion/Basis for Exemption Recommendation: Maremont submitted data on the series 38730 TWC + 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. The emission tests were conducted using a 1984 Ford E—150 Van 5.8L ballasted to 7,000 Ibs. equivalent test weight. The evaluation of the series 38730 catalytic converters for this application is solely based on the bench aging performed by ASEC and emission tests conducted at ATDS. The limits for the 2—by—1 application for the series 38730 TWC + OC are 5.8L/7,000 Ibs. The corresponding maximum gross vehicle weight rating (GVWR) is 9278 Ibs. The test catalysts were labeled315793—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 are the average of the conversion efficiencies of the two catalysts. The test results for the 2—by—1 application 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) 2.630 0.979 0.917 79.5 CO (g/imi)}59.124 16.064 16.999 72.0 NOx (g/mi) 2167 0.829 0.870 60.7 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 14:53:52
Document Modified: 2011-09-12 14:53:52

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