All publications can be found at https://tricare.mil/Publications.
TRICARE For Life Handbook
https://tricare.mil/Publications/Handbooks/tricare_for_life
This handbook provides an overview of the TRICARE For Life program. TRICARE For Life is Medicare-wraparound coverage for military retirees and their TRICARE-eligible family members who have both Medicare Part A and Part B.
This handbook describes how Medicare and TRICARE work together, provider options, costs, claims, and more.