NASA-GSFC-STD-1000E Rules for the Design, Development, Verification, and Operation of Flight Systems

National Aeronautics and Space Administration (NASA). Goddard Space Flight Center (GSFC). Approved: 08-03-2009 - With Administrative Changes. Expiration Date: 08-03-2014. Superseding GSFC-STD-1000D. 104 p. The GOLD Rules focus on fundamental principles and requirements, and therefore are intended to apply to all space flight products, regardless of implementation approach or mission classification. Whenever necessary, rules clarify requirements and expectations consistent with different mission classifications. Although not expected to be required, an a priori Mission Exceptions List (MEL) may be proposed at the start of a Program and/or Project, to highlight rules which may not apply. If a MEL is submitted and approved, the waivers will not be required for exceptions covered by the MEL. Other exceptions that arise during execution of the mission still require waivers, as appropriate