Uniform Marking is a term used to describe the identification of a person or group by means of a NUMBER, INSIGNIA, or other marking. It is often used in military and law enforcement contexts, where it is important to be able to quickly identify personnel. The term 'uniform marking' can also refer to the practice of labeling items with a unique identifier, such as a serial NUMBER or barcode. In this context, the NUMBER and INSIGNIA are used to distinguish one item from another.