*** Amendment 0006 has been posted. Clauses 252.204-7021 and 252.204-7025 have been removed. *** Amendment 0005 has been posted. Please see the Changed Response date from 19 March 2026 11:00AM EDT to 26 March 2026 11:00AM EDT and Specification changes.*** *** PLEASE NOTE previous Update 0005 was an Administrative update to fix response due date for Amendment 0004. No physical amendment documentation was posted with this update.*** *** Amendment 0004 *** 1. Amendment 4 revises/replaces sections 01 35 43, 01 35 53, 08 71 00, 22 00 00 in their entirety, various Plan Sheets as captured in the Summary of Changes Document, and the period of performance. 2. Changed Response date from 24 February 2026 at 11:00AM EST to 19 March 2026 at 11:00AM EST. *** Amendment 0003*** 1. Section 00 22 00 - Supplementary Instructions- (Procedures for Submittal of Offers and Proposal Evaluation Criteria), is hereby revised as indicated below.a. Requirements related to Paragraph 8.6 (Tab F - Project Labor Agreement) is hereby removed.2. Clauses 52.222-33 and 52.222-34 have been removed.3. The proposal due date has been extended from 06 February 2026 at 11:00 AM EST to 24 February 2026 at 11:00 AM EST. ***Amendment 0002 1. Changed Response date from 15 January 2026 to 06 February 2026 at 11:00 ET*** Amendment 0001: 1.Changed Response date from 05 January 2026 to 15 January 2026 at 10:00 ET. 2. The Period of Performance changed from 900 Calendar Days to 817 Calendar Days from Issuance of Notice to Proceed. PROJECT TITLE: NASIC DISTRICT COOLING PLANT AT WRIGHT PATTERSON AIR FORCE BASE, OHPROJECT LOCATION: WRIGHT PATTERSON AIR FORCE BASE, OHREQUEST FOR PROPOSAL FOR THE DESIGN AND CONSTRUCTION FOR A NASIC DISTRICT COOLING PLANT LOCATED AT WRIGHT PATTERSON AIR FORCE BASE, OH.THE MAGNITUDE OF CONSTRUCTION LISTED IN DFARS 236.204(II) IS BETWEEN $25,000,000.00-$100,000,000.00NAICS CODE 238220. SIZE STANDARD $19,000,000. PLEASE NOTE THAT BUSINESS SIZE IN THE SYSTEM FOR AWARD MANAGEMENT (SAM) IS DETERMINED BY THE NAICS CODE. IF THE VENDOR SIZE IS NOT LISTED CORRECTLY FOR A PARTICULAR NAICS CODE IN SAM, THE BUSINESS WILL BE CONSIDERED OTHER THAN A SMALL BUSINESS.THIS IS A FULL AND OPEN PROCUREMENT. IN ACCORDANCE WITH FEDERAL ACQUISITION REGULATION 19.1307, THIS PROJECT REQUIRES THE HUBZONE 10% PRICE EVALUATION PREFERENCE.PLEASE NOTE: SAM IS COMPLETELY FREE OF CHARGE FOR BOTH REGISTRANTS AND USERS.