Items under this Navy requirement require Government source approval prior to award; non-approved sources must submit the information detailed in the NAVSUP WSS Source Approval Brochure with their proposal, and offers missing required data will not be considered. If source approval cannot be processed in time and approval requirements would prevent timely delivery, award may proceed based on fleet support needs. The supply warranty is 12 months and 60 days after discovery of a defect. Early and incremental deliveries are accepted and preferred. Contractual documents are considered issued when mailed, faxed, or emailed, and the Government’s acceptance of a contractor’s proposal constitutes bilateral agreement to issue them.