Amendment 01: Extended the suspense date to provide the Government sufficient time to address the vendor’s question and to allow vendors adequate time to submit a response to the Sources Sought. The A... Amendment 01: Extended the suspense date to provide the Government sufficient time to address the vendor’s question and to allow vendors adequate time to submit a response to the Sources Sought. The Air Force District of Washington, Contracting Directorate (AFDW/PK), Joint Base Andrews, Maryland is conducting market research to identify businesses that provide provide the United States Space Force (USSF) Drug Screening program with Civilian Drug Testing Services.