Appendix A to Part 221 - Procedures for Approval of Rear End Marking Devices
49:4.1.1.1.16.4.11.1.23 : Appendix A
Appendix A to Part 221 - Procedures for Approval of Rear End
Marking Devices
As provided in § 221.15 of this part, marking devices must be
approved by the Administrator, Approval shall be issued in
accordance with the following procedures:
(a) Each submission for approval of a marking device consisting
of lighted elements only shall contain the following
information:
(1) A detailed description of the device including the type,
luminance description, size of lens, manufacturer and catalog
number, lamp manufacturer, lamp type and model number, and any
auxiliary optics used.
(2) A certification, signed by the chief operating officer of
the railroad, that -
(i) The device described in the submission has been tested in
accordance with the current “Guidelines for Testing of FRA Rear End
Marking Devices,” copies of which may be obtained from the Office
of Safety, Federal Railroad Administration, 1200 New Jersey Avenue,
SE., Washington, DC 20590;
(ii) The results of the tests performed under paragraph (i) of
this subsection demonstrate marking device performance in
compliance with the standard prescribed in 49 CFR 221.15;
(iii) Detailed test records, including as a minimum the name and
address of the testing organizations, the name of the individual in
charge of the tests, a narrative description of the test
procedures, the number of samples tested, and for each sample
tested, the on-axis beam candela, the beam candela at the ±15
degree points in the horizontal plane, the beam candela at the ±5
degree points in the vertical plane, and the chromaticity
coordinates, are maintained by the railroad and are available for
inspection by the FRA at a designated location which is identified
in the submission;
(iv) Marking devices of this type installed in the operating
environment shall consist of the same type and model of components
as were used in the samples tested for purposes of this approval
submission.
(3) Unless otherwise qualified, acknowledgement of the receipt
of the submission required by this section shall constitute
approval of the device. The FRA reserves the right to review the
test records maintained by the railroad, or to test independently
any device submitted for approval under these procedures, and to
withdraw the approval of such device at any time, after notice and
opportunity for oral comment, if its performance in the operating
environment fails to substantiate the rest results or to comply
with 49 CFR 221.15.
(b)(1) Each submission for approval of a marking device
consisting of non-lighted elements or a combination of lighted and
non-lighted elements shall contain the following information:
(i) A detailed description of the device including the type of
material, the reflectance factor, the size of the device, and the
manufacturer and catalogue number;
(ii) A detailed description of the external light source
including the intensity throughout its angle of coverage, and the
manufacturer and catalogue number;
(iii) A detailed description of the proposed test procedure to
be used to demonstrate marking device compliance with the standard
prescribed in 49 CFR 221.15, including any detailed mathematical
data reflecting expected performance.
(2) FRA will review the data submitted under subsection (1) of
this section, and in those instances in which compliance with 49
CFR 221.15 appears possible from a theoretical analysis, the FRA
will authorize and may take part in testing to demonstrate such
compliance.
(3) Where authorized testing has demonstrated compliance with 49
CFR 221.15, a railroad shall submit a certification, signed by the
chief operating officer of the railroad, that -
(i) The device described in the original submission has been
tested in accordance with the procedures described therein;
(ii) The results of the tests performed under paragraph (i) of
this subsection demonstrate marking device performance in
compliance with the standard prescribed in 49 CFR 221.15;
(iii) Detailed test records, including as a minimum the name and
address of the testing organization, the name of the individual in
charge of the tests, a narrative description of the test procedure,
a description of the external light source used, the number of
samples tested, and for each sample tested, the on-axis beam
candela, the beam candela at the ±15 degree points in the
horizontal plane, the beam candela at the ±15 degree point in the
vertical plane, and the chromaticity coordinates, are maintained by
the railroad and are available for inspection by the FRA at a
designated location which is identified in the submission;
(iv) Marking devices of this type installed in the operating
environment and the external light source used to illuminate them
shall consist of the same type and model of components as were used
in the samples tested for purposes of this approval submission.
(4) Unless otherwise qualified, acknowledgement of the receipt
of the submission required by this subsection shall constitute
approval of the device. The FRA reserves the right to review the
test records maintained by the railroad, or to test independently
any device submitted for approval under these procedures, and to
disapprove the use of such device at any time if its performance
fails to comply with 49 CFR 221.15.
(c) Whenever a railroad elects to use a marking device which has
been previously approved by the FRA, and is included in the current
list in appendix B to this part, the submission shall contain the
following information:
(1) The marking device model designation as it appears in
appendix B.
(2) A certification, signed by the chief operating officer of
the railroad that -
(i) Marking devices of this type installed in the operating
environment shall consist of the same type and model of components
as were used in the samples tested for the original approval.
(d) Each submission for approval of a marking device shall be
filed with the Office of Standards and Procedures, Office of
Safety, Federal Railroad Administration, 1200 New Jersey Avenue,
SE., Washington, DC 20590.
[42 FR 62004, Dec. 8, 1977, as amended at 74 FR 25173, May 27,
2009; 85 FR 80569, Dec. 11, 2020]