30 CFR § 19.12 Wording, purpose, and use of approval plate.
(a)Approval plate. The manufacturer shall attach, stamp, or
mold an approval plate on the battery container of each permissible lamp. The
plate shall bear the emblem of the Mine Safety and Health Administration and
be inscribed as follows: "Permissible Electric Cap Lamp. Approval No. -------
issued to the ----------------- Company." When deemed necessary, an
appropriate caution statement shall be added. The size and position of the
approval plate shall be satisfactory to MSHA.
(b)Purpose of approval plate. The approval plate is a label
which identifies the lamp so that anyone can tell at a glance whether or not
the lamp is of the permissible type. By it, the manufacturer can point out
that his lamp complies with specifications of MSHA and that it has been
judged as suitable for use in gassy mines.
(c)Use of approval plate. Permission to place MSHA's
approval plate on his lamp obligates the manufacturer to maintain the quality
of his product and to see that each lamp is constructed according to the
drawings which have been accepted by MSHA for this lamp and which are in
MSHA's files. Lamps exhibiting changes in design which have not been
approved are not permissible lamps and must not bear MSHA's approval
(d)Withdrawal of approval. MSHA reserves the right to
rescind, for cause, at any time any approval granted under this part.
[Sched. 6D, 4 FR 4003, Sept. 21, 1939, as amended at 43 FR 12314, Mar. 24,