Synopsis As Introduced Creates the Youth Homelessness Prevention Subcommittee Act. Requires the Governor's Cabinet on Children and Youth to create the Youth Homelessness Prevention Subcommittee to drive the State's strategic vision for preventing homelessness among youth leaving State systems of care. Sets forth the Subcommittee's duties including: (1) reviewing the discharge planning, services plans, and discharge procedures for youth leaving the custody or guardianship of the Department of Children and Family Services, the Department of Juvenile Justice, the Department of Human Services' Division of Mental Health, and the Department of Corrections to determine whether such discharge planning and procedures ensure housing stability for youth leaving State systems of care; and (2) collecting data on the housing stability of youth for one year after they are released from State custody or guardianship. Provides that the Subcommittee shall include specified members, including: (i) one representative from the Governor's office; (ii) 4 representatives from agencies serving homeless youth; and (iii) 4 youth who have a lived experience with homelessness. Contains provisions concerning a quorum, administrative support, subcommittee meetings, and reporting requirements.