The ASTM D4649-20 Standard Guidance provides recommendations for the selection, specification, and use of stretched parcel films for uniform, reinforced, and stackable applications in indoor environments. The Guidance helps buyers and sellers clarify purchase specifications that ensure suitability for storage and transportation needs in warehouses, enclosed containers (e.g., truck trailers or rail wagons), and associated transshipment end points. It is important to note that this Guidance does not address performance issues in outdoor environments, and that stretched films may exhibit poor performance at extreme temperatures. Values in the Guidance are in inch-pounds and are in SI units for reference only. Users should establish appropriate safety, health, and environment practices prior to use and comply with relevant regulations.