Packaging safety and performance collection for US sales standards are published primarily by ANSI-accredited standards developers and ISO. They cover the physical requirements for packaging material such as boxes and pallets, as well as workplace safety standards for shipping and delivery facilities. Many shipping depots make use of heavy machinery and devices such as conveyor belts and forklifts to operate, so the adjacent standards are available here to service a wide variety of needs for those in the shipping and delivery industry.