Headquarters and Headquarters Service Support Group, 1TAS Brigade

The Headquarters & Headquarters Service Group, known officially as HHSG, is one of the units of the 1st Technical and Administrative Services Brigade (Reserve) of the AFP Reserve Command, and is based in Quezon City. The unit provides combat support and service support services for the 1TAS Brigade.

The Area of Responsibility (AOR) of the Headquarters & Headquarters Service Group covers the entirety of NCR (National Capital Region). It is primarily tasked to support maneuver units of the AFP Reserve Force operating within these region.