This document specifies Acceptance and Testing Requirements for Pb-free circuit packs. Circuit pack testing may be done on a representative product, and is not required on derivative circuit packs provided there is sufficient similarity in terms of size, component types, printed wiring board structure and materials, etc. This document exclusively focuses on those issues specific to Pb-free assembly and the introduction of Pb-free components into circuit packs, and does not address requirements for product specific qualification.