Mich. Admin. Code R. 29.6155
Rule 55. Section 5.2.8.1 (C) of the LPG code is added to the code as follows: 5.2.8.1 (C) Container marking. When the data plate is missing on an installation of an ASME LP-gas container of over 4,000-gallons (15.2 cubic meters) water capacity, in use at a particular location, the bureau shall allow prior bureau LP-gas inspection reports, or facility information sheets to be adequate proof subject to approval by the bureau. The bureau shall allow the owner and operators to stamp, using non-sparking tools, within 12 inches (30.4 centimeters) of the center of the head, to stamp into the container all available pertinent information including serial number, gallon water capacity, manufacturer, or a number issued by the bureau when complying with this subsection.
Mich. Admin. Code R. 29.6155