The requirement is for items that require Government source approval prior to award; non-approved sources must submit the information specified in the NAVSUP WSS Source Approval Brochure with their proposal, and offers lacking required data will not be considered. If source approval cannot be processed in time or approval requirements preclude timely delivery, award may still proceed based on fleet support needs. The contracting office referenced is in Philadelphia. Supplies carry a 12-month warranty, with defects to be reported within 60 days after discovery. Early and incremental deliveries are accepted and preferred, and contractual documents are considered issued when sent by mail, fax, or electronic commerce, with Government acceptance forming bilateral agreement.