This solicitation is for a Multiple Award Construction Contract at Dover Air Force Base. The Air Force seeks to award six general construction contractors an indefinite delivery/indefinite quantity contract with a total maximum value of $70 million over a base year and six one-year options. The NAICS code is 236220 for commercial and institutional building construction with a size standard of $39.5 million. A pre-proposal conference will be held on April 7th, with questions due by April 9th and proposals due by May 4th. The guaranteed minimum is $500 payable after a post-award conference. The seed project is estimated between $500,000 to $1 million in value. Funds are not presently available and no award will be made until funding is in place, with the right to cancel reserved.