R--River Mission IDIQ Contract for Grand Canyon Natio

Amendment 0021 issued to EXTEND proposal due date to Wednesday NOVEMBER 20, 2019 AND to post Questions and Answers. River Mission IDIQ Contract for Grand Canyon National Park River Logistical Services -- This is a COMBINED SYNOPSIS / SOLICITATION for commercial items prepared in accordance with the format in the Federal Acquisition Regulations (FAR) Subpart 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation issued as Request for Proposal (RFP) 140P1520R0003. This announcement constitutes the only solicitation; proposals are being requested and a written solicitation will not be issued. FAR clauses and provisions enclosed within this RFP are those in effect through Federal Acquisition Circular (FAC) 2019-02 and are available in full text through Internet access at http:// www.acquisition.gov/far/. This requirement is set aside for Total Small Business. The North American Industry Classification System (NAICS) code is 483212 and the small business size standard is 500 Employees.