For RFPs (Requests for Proposals):. The Proposal must be complete and prepared in the format consistent with the instructions provided in this RFP.The Suffolk Redevelopment and Housing Authority offers numerous construction contracts year round. RFP Installation of Complete Security Systems. Request for Proposal - Bid opening date has been extended to Monday, October 24, 2024 at pm. Suffolk County's Open and Closed Solicitations are posted below. Please register or login to see details of all open opportunities.