NAVSEA requires access and the ability to obtain industry standards from Standards Development Organizations (SDO) to support product development and sustainment of Navy products. NAVSEA develops and ... NAVSEA requires access and the ability to obtain industry standards from Standards Development Organizations (SDO) to support product development and sustainment of Navy products. NAVSEA develops and manages its own portfolio of unique military standards, specifications, and manuals, which reference industry standards or Non-Government Standards (NGS) from various SDO. Having a single point of access to all the necessary NGS is naval requirement. See Draft Purchase Description.