Pay and Allowances Continuation (PAC) is for Soldiers during their hospitalization and rehabilitation resulting from wounds, injury, or illness incurred while on duty in a hostile fire area or exposed to an event of hostile fire or other hostile action anywhere in the world.

Retired Soldiers are not eligible for PAC. 

For more information on PAC, contact your Chain of Command, Soldier Recovery Unit Soldier and Family Readiness Specialist located in the Soldier and Family Assistance Center (SFAC). Or contact your Soldier Recovery Unit Finance Specialist. You may also contact Army Human Resources Command (HRC) at the locations listed below:

• Email: askhrc.army@us.army.mil

• Phone Number: 1-888-276-9472

• DSN Phone Number: 943-9500

• Address:
  HRC ATTN: PDP-C, Dept 480
  1600 Spearhead Division Avenue
  Fort Knox, Kentucky 40122-5408 USA
  

DoD FMR 7000.14-R, Volume 7A, Chapter 13: “Illness Or Injury Payment Programs”
https://comptroller.war.gov/Portals/45/documents/fmr/current/07a/07a_13.pdf