Z--Provide Replacement of Heating, Ventilation, & Air Conditioning (HVAC) Systems 140P5126R0002

THIS IS A PRE-SOLICITATION NOTICE ONLY. The National Park Service, Contracting Operations (ConOps) East, intends to issue a Solicitation for the Replacement of Heating, Ventilation, & Air Conditioning (HVAC) Systems for Fort Sumter National Historic Park Liberty Square Visitor Center Charleston, South Carolina in accordance with the project construction specifications and drawings. This procurement will be set-aside for Women-Owned Small Business (WOSB) firms. The NAICS code is 238220; Plumbing, Heating, and Air-Conditioning Contractors, with a small business size of $19,000,000.00. The PSC is Z2QA: Repair or Alteration of Restoration of Real Property (public Or Private). All interested offerors MUST have an active vendor record in SAM.gov, be a Women-owned small business under the identified NAICS code and NOT have any exclusions such as a delinquent federal debt or debarment. SITE VISIT: Only one formal (1) site visit will be scheduled as part of this solicitation, and no individual site visits will be allowed. All questions shall be submitted electronically to the Contracting Officer for formal responses. Details will be provided with the solicitation when its published. TYPE OF CONTRACT: As a result of the request for proposal, a single firm-fixed-price contract is expected to be awarded. Davis Bacon prevailing wages for Charleston County, South Carolina will apply for this requirement See attachment 0002 or SC20260023 on WDOL.gov will apply. The Government intends to award (1) one contract resulting from this solicitation to a responsible offeror whose offer conforming to the terms and conditions of the solicitation will be the most advantageous to the Government, price and other factors considered. The formal solicitation will be posted on sam.gov (System for Award Management) on or about May 05, 2026. This date is subject to change. Hard copy documents including drawings will not be available - all available documents will be posted for download. Offers will be due approximately 30 days after issuance of solicitation unless extended by amendment. This notice is for informational purposes only and is not a request for submission of offers. The Government is not obligated to issue a solicitation because of this notice. No other information is available until issuance of the solicitation. After issuance of solicitation, send any inquires via email (No phone calls please) to edward_dingle@ios.doi.gov by 1:00 pm (ET) on May 20, 2026 (This date is subject to change). No oral questions will be accepted. NOTE: No additional information is available until the formal solicitation is released. No offeror list is maintained by the Contracting Officer; however, you can add your name to the "Interested vendors" in the solicitation and the system will notify you of any updates.

The purpose of this amendment is to change the small business socio-economic set-aside requirement, extend the due date for receipt of proposals, provide site visit information, and update the period of performance. The small business socio-economic set-aside requirement is changed from a Service-Disabled Veteran-Owned Small Business (SDVOSB) set-aside to a total small business set-aside. The proposal due date is extended through July 15, 2026, 1:00pm EDT. New site visit information is provided as attachment 0014. The period of performance dates is changed From: June 22, 2026, to June 21, 2027, To: July 27, 2026, to April 26, 2027 (These dates are subject to change).