Unless otherwise specified, caution plates/decals shall be conspicuously installed for all equipment requiring such notices. Vehicles for civil agencies shall be provided with the manufacturer's current warranty legend imprinted on decalcomania, and applied in a visible area of the engine compartment. In addition, a decal or sticker shall provide at least the following information: contract number; purchase order number; date of delivery, month and year; and the warranty time, in month and miles.