MARKINGS38 General38.1 Required markings shall be permanent. Examples of permanent marking are ink stamping, engraving and if adhesive labels, compliance to the Standard for Marking and Labeling Systems, UL 969 for the surface adhered and conditions of use. Markings required by this standard including nameplate markings per 38.2 and any cautionary markings shall be legible, provided in text color that contrasts with the background color and visible upon installation of the electric energy storage system.38.2 Batteries are to be marked with the manufacturer’s name, trade name, trademark or other descriptive marking which may identify the organization responsible for the product, part number or Model number, and electrical ratings in volts dc and capacity in Ampere-hours or Watt-hours and chemistry. The electric energy storage system terminals shall be marked to indicate whether they are positive (+) or negative (-). The battery shall also be marked with its IP rating.