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NASA
Procedural
Requirements

NPR 8705.4B
Effective Date: November 01, 2024
Expiration Date: October 31, 2032

COMPLIANCE IS MANDATORY FOR NASA EMPLOYEES

Subject: Risk Classification for NASA Payloads

Responsible Office: Office of Safety and Mission Assurance

Appendix B. Acronyms

AOA	Analysis of Alternatives
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
MDR	Mission Definition Review
MMOD	Micrometeoroids and Orbital Debris
M&P	Materials and Processes
NASA-STD	NASA Standard
NEPP	NASA Electronic Parts and Packaging
NPD	NASA Policy Directive
NPR	NASA Procedural Requirements
NSPM	National Security Presidential Memorandum
OSMA	Office of Safety and Mission Assurance
QA	Quality Assurance
QMS	Quality Management System
PRA	Probabilistic Risk Assessment
R&M	Reliability and Maintainability
SCD	Source Control Drawing
SDR	System Design Review
SMA	Safety and Mission Assurance
SMD	Science Mission Directorate
SMSR	Safety and Mission Success Review
SNS	Space Nuclear System
SPF	Single Point Failure
SRR	System Design Review
TA	Technical Authority

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DISTRIBUTION:
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This document does not bind the public, except as authorized by law or as incorporated into a contract. This document is uncontrolled when printed. Check the NASA Online Directives Information System (NODIS) Library to verify that this is the correct version before use: https://nodis3.gsfc.nasa.gov.

Subject: Risk Classification for NASA Payloads

Responsible Office: Office of Safety and Mission Assurance

Appendix B. Acronyms

DISTRIBUTION: NODIS

DISTRIBUTION:
NODIS