National Aeronautics and Space Administration (NASA). This Technical Standard approved by NASA July 28, 2004. 67 p. This standard specifies the software assurance requirements for software developed or acquired1 and maintained by the National Aeronautics and Space Administration (NASA) and for open-source software, Government off-the-shelf (GOTS) software, modified off-the-shelf (MOTS) software, and commercial off-the-shelf (COTS) software when included in a NASA system. This Standard applies to use of new and existing (e.g., reuse, legacy, heritage) software products and components