Timely Mental Health for Foster Youth Act This bill requires an initial mental health screening within 30 days after a child enters foster care. In the case of a child for whom a mental health issue is identified in such initial screening, a comprehensive assessment of the child's mental health must be completed within 60 days after the child's entry into foster care. The Department of Health and Human Services must provide technical assistance for states to implement this requirement and collect data and report on the number of screenings completed.