XMM-Newton |
X-ray Multi-Mirror Mission Newton |
XRISM |
X-ray Imaging and Spectroscopy Mission |
XSD |
X-ray Science Division |
XUNDL |
Experimental Unevaluated Nuclear Data List |
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Y4Y |
You for Youth (unable to verify 10/23) |
YALI |
Young African Leaders Initiative |
YARH |
Youth/Young Adults with Child Welfare Involvement At-Risk of Homelessness |
YCC |
Youth Conservation Corps |
YCR |
Yellowstone Center for Resources |
YE4C |
Youth Engaged 4 Change |
YERS |
Year-End Reports |
YES |
Kennedy-Lugar Youth Exchange and Study program |
YFC |
Institute of Youth, Family, and Community (changed to IYFC) |
YHDP |
Youth Homelessness Demonstration Project |
YHSI |
Youth Homelessness System Improvement grants |
YM |
Youth Mentoring |
YMSM |
Young Men Who Have Sex With Men Project (unable to verify 5/24) |
YRBSS |
Youth Risk Behavior Surveillance System |
YRC |
Young Readers Center (changed to YRCPL) |
YRCPL |
Young Readers Center & Programs Lab |
YRTC |
Youth Regional Treatment Centers |
YSEALI |
Young Southeast Asian Leaders Initiative |
YSS |
Year of the Solar System (unable to verify 3/16) |
YTILI |
Young Transatlantic Innovation Leaders Initiative |
YTS |
Youth Tobacco Survey (changed to NYTS) |
YVO |
Yellowstone Volcano Observatory |
YVPCs |
National Centers of Excellence in Youth Violence Prevention |
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ZBOT-NC |
Zero Boil-Off Tank-Non-Condensable |
ZBP |
Zip Code Business Patterns |
ZCTA |
ZIP Code Tabulation Areas |
ZIP (Code) |
Zone Improvement Plan |
ZSAL |
Zoonoses and Select Agent Laboratory |
ZSI |
Zero Suicide Initiative |