Operation ID is a burglary/theft prevention program. It involves engraving property with an identifying number, such as a license, as a means of discouraging burglary and theft. It also provides police with a way to identify property should it be stolen and recovered.
Anything of value should be marked if possible. A detailed inventory of all marked items should be kept by the property owner. Include make, model, serial number, and description along with specific marking.