Approval Details

Valid E.O.


This Executive Order approved the specified parts on on October 27, 1993.
As of Wednesday, October 16th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
51781992 -1993 Dodge 5.2L truckAll nitrous injection kits must use a wide open throttle relay module and a #67 flare jet.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-266-3
  • Executive Order 266-3 / D266-3
  • ARB # D-266-3
  • Executive Order No: D-266-3
  • C.A.R.B. No. D-266-3
  • Resolution D-266-3
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-266-3 PDF

D-266-3 Document:

                                               (Page 1 of 2)

                               State of California
                               AIR RESOURCES BOARD

                             EXECUTIVE ORDER D—266—3
                  Relating to Exemptions Under Section 27156
                             of the Vehicle Code

                          NITROUS OXIDE SYSTEMS, INC.
                       NITROUS OX:.  cNJECTION KIT #5178

Pursuant to the authority vested in the Air Resources Board (ARB) 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—45—5;

IT IS ORDERED AND RESOLVED:  That the installation of the Nitrous Oxide
Injection kits manufactured by Nitrous Oxide Systems, Inc. has been found
not to reduce the effectiveness of required motor vehicle pollution control
devices and, therefore, is exempt from the prohibitions of Section 27156 of
the Vehicle Code for the following vehicles:

Application                   Engine Displacement                      Kit#®

1992 &   1993 Dodge trucks             5. 2L                           5178

All Nitrous Oxide Injection kits must use a wide open throttle relay module
and a #67 flare jet.

This Executive Order is valid provided that installation instructions for
the Nitrous Oxide Injection kits will not recommend tuning the vehicle to
specifications different from those submitted by the device manufacturer.

Changes made to the design or operatgpg conditions of the device, as
exempted by the ARB, that adversely affect the performance of a vehicle‘s
pollution control system shall      invalidate this Executive Order.

Marketing of this device using an identification other than that shown in
this Executive Order or marketing of this device for an application other
than those listed in this Executive Order shall be prohibited unless prior
approval   is obtained from the ARB.

This Executive Order does not constitute any opinion as to the effect the
use of this device may have on any warranty either expressed or implied by
the vehicle manufacturer.

This Executive Order is granted based on an engineering evaluation which
shows that emissions are not affected during the Cold—Start CVS—75 Federal
Test Procedure.  However, the ARB finds that reasonable grounds exist to
believe that use of the Nitrous Oxide Injection kits may adversely affect
emissions of motor vehicles when operating under conditions outside the
parameters of the previously prescribed test procedures.  Accordingly, the
ARB reserves the right to conduct additional emission tests, in the future,
as such tests are developed, that will more adequately measure emissions
from all cycle phases. If such test results demonstrate that the Nitrous
Oxide Injection kits adversely affect emissions during off—cycle conditions
(defined as those conditions which are beyond the parameters of the Cold—

  NITROUS OXIDE SYSTEMS,                                        INC.                                  EXECUTIVE ORDER D—266—3
                                                                                                      (Page 2 of 2)

  Start CVS—75 Federal Test Procedure), this Executive Order shall be
  effectively rescinded as of the date the test results are validated.
   Further,              if such test results or other evidence provides the ARB with reason
  to suspect that the Nitrous Oxide Injection kits will affect the durability
  of the emission control system, Nitrous Oxide Systems, Inc. shall be
  required to submit durability data to show that the durability of the
   vehicle emission control system is not,                                              in fact,            affected and/or that the
   add—on or modified part demonstrates adequate durability.

   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 Title 13, California Code of Regulations, Section 2222, et


   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.                                                                             >

   Section 17500 of the Business and Professions Code makes untrue or
   misleading advertising unlawful, and Section 17534 makes violation
   punishable as a misdemeanor.

   Section 43644 of the Health and Safety Code provides as follows:

              "43644,   (a)  No person shall install, sell, offer for sale, or
              advertise, or, except in an appltcation to the state board for
              certification of a device, represent, any device as a motor vehicle
              pollution control device for use on any used motor vehicle unless that
              device has been certified by the state board.  No person shall sell,
              offer for sale, advertise, or represent any motor vehicle pollution
              control device as a certified device which, in fact, is not a certified
              device.                  Any violation of this subdivision is a misdemeanor."

   Any apparent violation of the conditions of this Executive Order may result
   in its rescission or submission to the Attorney General of California for
   such action as he deems advisable.

  The Bureau of Automotive Repair will be notified by copy of this order.

  Executed at El Monte,                                     California,    this          2 7L’

                                                                                   R. 8. Summerfield
                                                                                   Assistant Division Chief
                                                                                   Mobile Source Division

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Document Created: 2005-09-01 12:45:14
Document Modified: 2005-09-01 12:45:14

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