New Aerospace Standard Supplement You are using COTS Software in your aerospace development?  This article is for you! Introduction to New RTCA Supplement An RTCA and EUROCAE joint committee (SC-240/WG-117) entitled Aviation Software Standards is creating a new RTCA supplement to the software assurance standards DO-178C/DO-278A and ED-12C/ED-109A. Initial issuance is for COTS Software and