YVVS means Directorate of Launch Base Operations, DOD Mission Support Division in NASA




Similar to YVVS

(H) - Hazardous Task Classification
(S) - Safe Task Classification
0G - Zero Gravity
2GRLV - 2nd Generation Return to Launch Vehicle
2IC - Second In Command
2M - Micro Miniature
2MASS - Two Micron All-Sky Survey

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