NASA Procedures and Guidelines

NPR 8705.4A

Eff. Date: April 29, 2021

Cancellation Date:

Risk Classification for NASA Payloads

AO	Announcement of Opportunity
EEE	Electronics, Electrical, and Electromechanical
FMEA	Failure Modes and Effects Analysis
FRB	Failure Review Board
IV&V	Independent Verification and Validation
KDP	Key Decision Point
LCC	Life-Cycle Costs
LCR	Life-Cycle Review
MAR	Mission Assurance Requirements
MDAA	Mission Directorate Associate Administrator
M&P	Materials and Processes
NASA-STD	NASA Standard
NPD	NASA Policy Directive
NPR	NASA Procedural Requirements
OSMA	Office of Safety and Mission Assurance
QA	Quality Assurance
QMS	Quality Management System
R&M	Reliability and Maintainability
SCD	Source Control Drawing
SMA	Safety and Mission Assurance
SMD	Science Mission Directorate
SMSR	Safety and Mission Success Review
SPF	Single Point Failure
TA	Technical Authority