This is a limited source solicitation for 14 discharge air valves, where the government lacks the technical data to contract with anyone other than the current approved source. The items are subject to Free Trade Agreements and the World Trade Organization Government Procurement Agreement. A critical requirement is that all items necessitate Government Source Approval prior to award, and the approval process for a new source is typically too lengthy to delay an award. Offerors who are not already approved sources must submit a complete source approval package with their proposal, or their offer will not be considered. For further details, contact the provided point of contact.