Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on January 25, 2006.
As of Wednesday, January 15th, 2025 this Executive Order has not been overturned or superceeded.

Approved Parts

ModelsModification
2003 and older on-road heavy-duty diesel engines certified to particulate matter emission standards of 0.60 g/bhp-hr or less and not otherwise equipped with an aftertreatment emission control system such as a catalytic converter or a particulate matter filter.The AZ Purifier and AZ Purimuffler exempted under this Executive Order can be installed on engines operated using standard California diesel with a maximum sulfur content of 500 ppmw, ultra low sulfur diesel with a maximum sulfur content of 15 ppmw, or PuriNOx water emulsion fuel based on standard California diesel.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-420-8
  • Executive Order 420-8 / D420-8
  • ARB # D-420-8
  • Executive Order No: D-420-8
  • C.A.R.B. No. D-420-8
  • Resolution D-420-8
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-420-8 PDF

D-420-8 Document:

CARB_D-420-8

State of California AIR RESOURCES BOARD EXECUTIVE ORDER D—420—8 Relating to Exemptions under Section 27156 of the Vehicle Code Engine Control Systems Ltd. AZ Purifier and AZ Purimuffier Pursuant to the authority vested in the Air ResourcesBoard by Section 27156 of the Vehicle Code; and Pursuant to the authority vested in the undersigned by Sections 39515 and 39516 of the Health and Safety Code and Executive Order G—02—003; IT IS ORDERED AND RESOLVED: That installation of the AZ Purifier and AZ Purimuffier, manufactured by Engine Control Systems Ltd. of 165 Pony Drive, Newmarket, Ontario, Canada L3Y 7V1, has been found not to reduce the effectiveness of the applicable engine emission control system, and therefore, the AZ Purifier and AZ Purimuffier are exempt from the prohibitions in Section 27156 of the Vehicle Code for installation on 2003 and older model—year on—road heavy—duty diesel engines certified to particulate matter emission standards of 0.60 g/ibhp—hr or less and not otherwise equipped with an aftertreatment emission control system such as a catalytic converter or a particulate matterfilter. The AZ Purifier and AZ Purimuffier exempted under this Executive Order can be installed on engines operated using standard California diesel with a maximum sulfur content of 500 parts per million by weight (ppmw), ultra—low sulfur diesel with a maximum sulfur content of 15 ppmw, or PuriNOx water emulsion fuel based on standard California diesel. The AZ Purifier and AZ Purimuffier exempted under this Executive Order are identified in Attachment A. This exemption is based on emission tests conducted by Engine Control Systems Ltd. with the AZ Purimuffler. Test data showed that the AZ Purimuffler has no adverse impact on engine emissions. The same emissions impact is expected when the AZ Purifier and AZ Purimuffier are instalied on any of the engines listed above. This Executive Order is valid provided that installation instructions for the AZ Purifier and AZ Purimuffler do not recommend tuning the engines to specifications different from those of the engine manufacturer. Changes made to the design or operating conditions of the AZ Purifier or AZ Purimuffler, as exempted by the Air Resources Board, which adversely affect the performance of the engine‘s pollution control system, shall invalidate this Executive Order. Marketing of the AZ Purifier and AZ Purimuffler using identification other than that shown in this Executive Order or for an application other than that listed in this Executive Order shall be prohibited unless prior approval is obtained from the Air Resources Board.

2. This Executive Order shall not apply to any AZ Purifier or AZ Purimulffler advertised, offered for sale, sold with, or installed on a motor vehicle prior to or concurrent with transfer to an ultimate purchaser. This Executive Order does not constitute any opinion as to the effect the use of the AZ Purifier and AZ Purimuffier may have on any warranty either expressed or implied by the engine manufacturer. j No claim of any kind, such as "Approved by the Air Resources Board," may be made with respect to the action taken herein in any advertising or other oral or written communication. In addition to the foregoing, the Air Resources Board 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 California Code of Regulations, Title 13, Section 2222, et seq. THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION, ACCREDITATION, APPROVAL, OR ANY OTHER TYPE OF ENDORSEMENT BY THE AIR RESOURCES BOARD OF ANY CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED BENEFITS OF ENGINE CONTROL SYSTEMS LTD.‘S AZ PURIFIER AND AZ PURIMUFFLER. Violation of any of the above conditions shall be grounds for revocation of this Executive Order. The Executive Order may be revoked only after a ten—day written notice of intention to revoke the Executive Order, in which period the holder of the Executive 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 Executive Order may not be revoked until a determination is made after a hearing that grounds for revocation exist. Executive Order D—420—3, dated June 9, 2003, is hereby superseded and is of no further force and effect. Executed at El Monte, California, this 33 day of January 2006. ‘zg/A_llen Lyons, Chief Mlobile Source Operations Division [ ENGINE CONTROL SYSTEMS LTD. — AZ PURIFIER AND AZ PURIMUFFLER — D—420—8

Attachment A AZ28 AZ29 A16—3OXX AZ30 AMTOXX AZ31 A1B—SOXX AZ33 AZ36 Note: ECS Part Number Pre—fixes A16, A17, and A18 designate converter design format: {1) A16 designates the Purifier format (converter only). (4) A17 designates the Purimuffler format (converter and muffier). (5) A18 designates the Purimuffler format (converter and muffier, UL approved spark arresting). Catalyst Model AZ designates catalyst formulation. Numbers 27 through 36 designate catalyst size. For custom direct fit applications, the part number will describe the converter design format and application, i.e. AZ Purimulffler for ABC Trucking with Cummins B engine. ENGINE CONTROL SYSTEMS LTD. — AZ PURIFIER AND AZ PURIMUFFLER — D—420—8


Document Created: 2006-02-15 08:05:49
Document Modified: 2006-02-15 08:05:49

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