Approval Details

Valid E.O.


This Executive Order approved the specified parts on on April 4, 2001.
As of Wednesday, October 16th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
0502001 and older model-year heavy-duty diesel vehiclesbreather tube diameter 0.5 inch

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-518
  • Executive Order 518 / D518
  • ARB # D-518
  • Executive Order No: D-518
  • C.A.R.B. No. D-518
  • Resolution D-518
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-518 PDF

D-518 Document:

                                                           (Page 1 of 3)

                                    State of California
                                AIR RESOURCES BOARD

                               EXECUTIVE ORDER D—518
                       Relating to Exemptions Under Section 27156
                                    of the Vehicle Code

                                    DAPOLDO, INC.
                                 BLOW—BY RESERVOIR

Pursuant to the authority vested in the Air Resources Board by Section 27156 of the
Vehicle Code; and

Pursuant to the authority vested in the undersigned by Section 39515 and Section
39516 of the Health and Safety Code and Executive Order G—45—9;

IT IS ORDERED AND RESOLVED: That the installation of the Blow—By Reservoir,
produced and marketed by Dapoldo, Inc., 36550 Bailey Road, Pomeroy, Ohio 45769,
has been found not to reduce the effectiveness ofthe applicable vehicle pollution
control systems and, therefore, is exempt from the prohibitions of Section 27156 of the
Vehicle Code for 2001 and older model—year heavy—duty diesel vehicles. Model
numbers 050, 075, 100, 125, and 150, correspond to breather tube diameters of %, %,
1, 1 4, and 1 % inches, respectively.

The Blow—By Reservoir separates oil from the blow—by gases emitted from the engine
crankcase through the blow—by tube. The oil separated from the blow—by gases is
stored in the reservoir for disposal with the used crankcase oil. The Blow—By Reservoir
is equipped with a warning light to indicate an excessive oil level in the reservoir.
Engines certified with positive crankcase ventilation systems that return crankcase
gases to the air intake system shall retain this operational condition, and the output of
the Blow—By Reservoir shall be routed to the engine air intake system.

This Executive Order is valid provided that the installation instructions for the Blow—By
Reservoir will not recommend tuning the vehicle to specifications different from those of
the vehicle manufacturer.

Changes made to the design or operating conditions of the Blow—By ‘Reservoir, as
exempt by the Air Resources Board, which adversely affect the performance of the .
vehicle‘s pollution control system shall invalidate this Executive Order.

DAPOLDO, INC.                                              EXECUTIVE ORDER D—518
BLOW—BY RESERVOIR                                          (Page 2 of 3)

This Executive Order shall not apply to any Blow—By Reservoir advertised, offered for
sale, sold with, or installed on a new motor vehicle prior to or concurrent with transfer to
an ultimate purchaser.

Marketing of the Blow—By Reservoir using any identification other than that shown in this
Executive Order or marketing of the Blow—By Reservoir for an application other than
those listed in this Executive Order shall be prohibited unless prior approval is obtained
from the Air Resources Board.

This Executive Order does not constitute any opinion as to the effect the use of the
Blow—By Reservoir may have on any warranty either expressed or implied by the vehicle

The staff concludes based on an engineering evaluation that the Blow—By Reservoir
meets the criteria for exempting general criteria parts. No emission testing was required
for the evaluation of the Blow—By Reservoir because no adverse effect on vehicle
emissions is anticipated from use of the Blow—By Reservoir. Further, since the exit tube
is not routed to the engine air intake system, there should be no durability concerns
when using the Blow—By Reservoir. For those vehicles certified with closed crankcase
ventilation systems which route crankcease gases to the air intake systems, there should
be no durability concerns because those vehicles are not equipped with turbochargers.
However, if future test results or other evidence provides the ARB with reason to
suspect that the Blow—By Reservoir will affect the durability of the emission control
system, Dapoldo, 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 seq.


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

DAPOLDO, INC.                                           EXECUTIVE ORDER D—518
BLOW—BY RESERVOIR                                          (Page 3 of 3)

Violation of any of the above conditions shall be grounds for revocation of this order.
The ordér may be revoked only after a ten—day written notice of intention to revoke the
order, in 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 fif"_ day of April 2001.

                                R. B. Summerfield, Chief
                                Mobile Source Operations Division

Document Created: 2005-09-01 12:41:29
Document Modified: 2005-09-01 12:41:29

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