HSTA consists of five components: Misc Expense, Wardrobe, Predeparture Subsistence Expense (PDSE)/”Subsistence Expense Portion,” Lease Penalty, and Pet Shipment/Quarantine. TDY Rentals utilizes the Predeparture Subsistence Expense (PDSE), or what’s identified as Temporary Quarters Subsistence Expenses (TQSE).