30 CFR § 19.10
Material required for MSHA records.
In order that MSHA may know exactly what it has tested and approved, detailed
records are kept covering each investigation. These include drawings and
actual equipment, as follows:
(a) Drawings. The original drawings submitted with the
application for the tests and the final drawings, which the manufacturer must
submit to MSHA before the approval is granted, to show the details of the
lamp as approved. These drawings are used to identify the lamp in the
approval and as a means of checking the future commercial product of the
(b) Actual equipment. (1) If MSHA so desires, parts of the
lamps which are used in the tests will be retained as a permanent record of
the investigation and of the lamps submitted.
(2) If the lamp is approved, MSHA will require the
manufacturer, as soon as his first manufactured lamps are available, to
submit one complete lamp, bearing the approval plate, as a record of his