TRICARE Operations Manual 6010.59-M, April 1, 2015 Chapter 25 TRICARE Young Adult (TYA) Revision: C-1, March 10, 2017 Section/Addendum Subject/Addendum Title 1 TRICARE Young Adult (TYA) A TRICARE Young Adult (TYA) Premiums Figure 25.A-1 TYA Premiums