Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on October 22, 2002.
As of Friday, September 20th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

ModelsModification
1991-2002 model-year 4-stroke heavy-duty diesel and diesel/natural gas bi-fuel engines with horsepower ratings less than 600. This exemption excludes any engines equipped with an oxidation catalyst, diesel particulate filter, or an exhaust gas recirculation system.The system includes a urea injection system, an SCR catalyst, and control sensors.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-547
  • Executive Order 547 / D547
  • ARB # D-547
  • Executive Order No: D-547
  • C.A.R.B. No. D-547
  • Resolution D-547
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-547 PDF

D-547 Document:



                                     State of California
                                AIR RESOURCES BOARD
                                EXECUTIVE ORDER D—547

                               Relating to Exemptions under
                            Section 271586 of the Vehicle Code

                                    Haldor Topsge AJS
                         Urea Selective Catalytic Reduction System

 Pursuant to the authority vested in the Air Resources Board (ARB) by Sectlon 27156 of
 the Vehicle Code; and

 Pursuant to the authority vested inthe 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 Urea Selective Catalytic
Reduction (SCR) System, manufactured by Haldor Topsge A/S of Nymallevej 55,
DK—2800, Lyngby, Denmark, has been found not to reduce the effectiveness of the
applicable engine emission control system, andtherefore, the Urea SCR System is
exempt from the prohibitions in Section 27156 of the Vehicle Code for installation on
1991—2002 model-year 4—stroke heavy—duty diesel and diesel/natural gas bi—fuel engines
(< 600 hp) used in on—road vehicles.

This, exemption excludes any engines equipped with an oxidation catalyst, diesel
particulate filter, or an exhaust gas recirculation system.

The Urea SCR System consists of a urea injection system, an SCR catalyst, and control
sensors. The injection system includes a combined dosing pump and electronic control
unit, valve manifold, urea/air atomizer, and a urea storage tank. The sensors includs a
NOx sensor, mass air flow sensor, and two temperature sensors. ‘The system
components exempted under this Executive Order are identified in Attachment A.

This exemption is based on emission tests conducted by Haldor Topsge A/S with the
Urea SCR System. Test data showed that the Urea SCR System has no adverse
 impact on engine emissions.

This Executive Order is valid provided that installation instructions for the Urea SCR
System do not recommend tur)ing the engines to specifications different from those of
the engine manufacturer.

Changes made to the design or operating conditions.of the Urea SCR System as
exempted by the ARB, which adversely affect the performance of the engine‘s pollution
control system, shall invalidate this Executive Order.

Marketing of the Urea SCR System 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 ARB.


                                               «3.

  This Executive Order shall not apply to any Urea SCR System advertised, offered for
  sale, sold with, or installed on any diesel engine 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
  Urea SCR System may have on any warranty either expressed or implied by the engine
  manufacturer.

  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 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 Calffornia 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 HALDOR TOPSOE
  A/S‘ UREA SELECTIVE CATALYTIC REDUCTION SYSTEM.

  Violation of any of the above conditions shall be grounds for revocation of this Executive
  Ordér. 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.

  Executed at El Monte, California, this 'ZZ'"P day of October 2002.




                                        MoBile Source Operations Division




                             HALDOR TOPSO@E A/S
              UREA SELECTIVE CATALYTIC REDUCTION SYSTEM — D—547


                                     Attachment A



                                                                    suppher|
            Dosing Pump                                    Grundfos/Haldor Topsge ais
       Fitting for dosing pump          PMO90612E                   GPA plast

       Electronic Control Unit           ME.SPE                       Mece!
 Valve—Unit 12VDC or 24VDC                BU.SPE                     BUurkert
       Fittings for Valve—Unit    PMO10611E€ & PMO10612E            GPA plast

       Check Valve, 40 Kpa         ~ LHC855UR00040S                 Parameter
       PA—Hose, OD 6x4mm                 PAOEO4S                    GPA plast

       PFA—Hose, OD 6x4mm            4800—4600400100               Duotec A/S

Boxa:‘cg gj\?g&cggxgygbggxljc             HToO2                Haldor Topsge A/S
   .        NOx Sensor                  NGK.SPE                       NGK
valve—untandNOseContredier              AKS.SPE              AKS Metalindustri A/S >
             Urea Tank                  _ HTOO3                Haldor Topsge A/S

SCR Catalyst: Type DNXR 905                N/A                 Haldor Topsge A/S

 Level Sensor for Urea Tank              GF.SPE                     Grundfoé
  PressureReduction Vaive               821302088                HN—Colsult A/S
        Fitting for Air Supply        $S—400—7—4RT         Dansk Ventil og Fitting Aps

  . Nozzle for Urea Dosing              AKS.SPE              AKS Metalindustri A/S
  Insulating Tube for Nozzle            AKS.SPE              AKS Metalindustri A/S
       wau;‘rt;‘r',gg 5 Nee             As 25 s71                 Sanistdl A/S
 Mass Flow Controller (MAF)            7.22684.07.0         Kolbenschmidt Pierburg

        Connector for MAF                  N/A                     Mercedes
Temperature Sensor PT200 (2)     MW—TYP GP2121 ~250mm        Kjizerulf Pedersen A/S

Fitting for Temperature Sensor         SS—600—6—1          Dansk Ventil og Fitting Aps
Main Power Switch and Fuses                N/A                        N/A
        Harting Connectors                 N/A                    Wexge AS
AMP—Connectors for Sensors                 N/A                Farnell Danmark A/S
        Connecting Cables                  N/A                        N/A

                                 HALDOR TOPSOE A/S
              UREA SELECTIVE CATALYTIC REDUCTION SYSTEM — D—547



Document Created: 2005-09-01 12:45:50
Document Modified: 2005-09-01 12:45:50

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