Soldiers and Army spouses belong to Soldier and Family Readiness Groups (SFRGs), renamed from (FRGs) which mirror the command structure of an Army unit — the spouse of the 40th Chief of Staff of the United States Army has served on the FRG at every echelon of the Army. The name change to SFRG is to be more inclusive of single soldiers, single parents, and also those with nontraditional families. An S/FRG seeks to meet the needs of soldiers and their families, for example during a deployment, or to address privatized housing deficiencies, or to aid spouses find jobs. As a soldier transfers in and out of an installation, the soldier's entire family will typically undergo a permanent change of station (PCS) to the next post. PCS to Europe and Japan is now uniformly for 36 months, regardless of family status (formerly 36 months for families). Transfers typically follow the cycle of the school year to minimize disruption in an Army family. By policy, DoD families stationed in Europe and Japan who have school-aged children are served by American school systems— the Department of Defense Dependents Schools. Noncombatant evacuation operations are a contingency which an FRG could publicize and plan for, should the need arise.