This standard establishes the requirements for exchanging material and substance data for Products between suppliers and their customers for Aerospace and Defence (AD)@ Heavy Equipment (HE) and other industries. This standard covers the process for exchanging data on chemical substances (??Substances??) that may be present in materials@ used in production@ operations@ maintenance@ repair or overhaul efurbishment of the supplied product or subproduct. This standard applies to business-to-business transactions. It is not intended to be used by the general public when making purchasing decisions. This standard is not a compliance guide. Multiple Declarable Substance Lists (DSL) designated by various industries may be applicable to this standard for reporting purposes. One example of an industry designated DSL is the International Aerospace Environmental Group (IAEG?) Aerospace and Defence Declarable Substances List (AD-DSL). Purpose This standard covers specific requirements for data as described in the Scope to be exchanged between a supplier and a requester.