National Aeronautics and Space Administration (NASA). This NASA Procedural Requirements. Effective Date: April 20, 2011. Expiration Date: April 20, 2016. 60 p. This document sets forth NASA requirements applicable to robotic planetary flight programs. These requirements are necessary to enable the Associate Administrator for the Science Mission Directorate (SMD AA) to fulfill his/her responsibilities pertaining to planetary protection, as required by NPD 8020.7 (Biological Contamination Control for Outbound and Inbound Planetary Spacecraft).