Laser marking is the process in which a laser is used to make permanent marks on the surface of a material. Common types of laser marks include part origin and date of manufacture, serial numbers, stock, lot and batch number inspection marks, marks for assembly, positioning and maintenance, as well as 1D and 2D barcodes. These permanent marks are used for part identification, authenticity and product traceability during the manufacturing process and the life of the part. Most manufacturers must adhere to strict guidelines as their products are heavily regulated. Part identification and product traceability are essential for manufacturers to maintain compliance.