Support for Evaluating and Conducting Computational and Alternative Toxicological Methods for the National Institute of Environmental Health Sciences

Closed Pre-Solicitation Posted

This opportunity was awarded. See the award notice from , or the latest solicitation from .

Solicitation number
PreSol75N96025R00004
Agency
Responses due
Set-aside
Total Small Business

Opportunity facts

Place of performance
United States

Notice details come from SAM.gov. Updated .

About this opportunity

The National Institute of Environmental Health Sciences (NIEHS), operating under the Department of Health and Human Services, is planning to issue a Request for Proposals for support services related to evaluating and conducting computational and alternative toxicological methods. This pre-solicitation notice announces a follow-on contract opportunity focused on toxicological testing using New Approach Methodologies (NAMs), which encompasses technologies and approaches that can assess chemical hazard and risk without animal testing, including in silico, in chemico, in vitro, and ex vivo methods. The contract will support research areas including population variability, susceptibility, developmental neurotoxicity, carcinogenicity, ecotoxicity, and acute toxicity testing. The work aims to predict adverse human health effects from chemical exposures while replacing, reducing, or refining animal use in toxicity testing. This pre-solicitation notice was posted on September 2, 2025, with responses due by September 16, 2025, and the actual RFP expected to be released on or around September 17, 2025.

This opportunity is designated as a Total Small Business set-aside, restricting competition to qualified small business concerns. The notice indicates this is a follow-on contract, suggesting there is a current incumbent contractor providing similar services, though the specific contractor name is not identified in the available documentation. No specific contract values, budget ranges, or award amounts are disclosed in this pre-solicitation announcement. The contract falls under NAICS code 541715 for Research and Development in the Physical, Engineering, and Life Sciences, and PSC code AJ11 for General Science and Technology R&D Services. The acquisition is described as providing continuing support services that extend beyond the current scope, indicating an expansion or evolution of existing toxicological testing capabilities at NIEHS.

Notice text

Support for Evaluating and Conducting Computational and Alternative Toxicological Methods for the National Institute of Environmental Health Sciences

This Pre-Solicitation Announcement is issued by the NICHD Office of Acquisitions on behalf of the National Institute of Environmental Health Sciences (NIEHS). 

THIS IS NOT A REQUEST FOR PROPOSALS (RFP). THIS IS A PRE-SOLICITATION ANNOUNCEMENT ONLY.  NO RESPONSES ARE DUE AT THIS TIME.  A REQUEST FOR PROPOSALS (RFP) WILL BE ISSUED VIA SAM.GOV CONTRACT OPPORTUNITIES ON OR ABOUT SEPTEMBER 17, 2025.

The National Institute of Environmental Health Sciences (NIEHS) is planning to issue an RFP for a follow-on contract for Support for Evaluating and Conducting Computational and Alternative Toxicological Methods.  The acquisition will support and assist the National Institute of Environmental Health Sciences (NIEHS) by conducting and evaluating toxicological testing using computational and/or alternative approaches, also referred to New Approach Methodologies (NAMs). NAMs broadly refers to any technology, methodology, approach, and/or combination of the three that can provide information on chemical hazard and risk assessment without the use of animals, such as in silico, in chemico, in vitro, and ex vivo approaches. The areas of focus for the research include but are not limited to population variability, susceptibility, developmental neurotoxicity, carcinogenicity, ecotoxicity, acute toxicity, etc.

The outputs from this requirement will directly feed into the mission of the Department of Health & Human Services (HHS). This requirement would produce information to predict adverse human health effects from chemical exposures while also replacing, reducing, or refining the use of animals in toxicity testing. These services are necessary to support state of the art alternative toxicity testing at NIEHS. This acquisition is for continuing support services for alternative toxicological testing approaches that extend beyond the scope or capability of in-house staff.

This acquisition will be competed as a 100% Set-Aside for Small Business concerns whereby only Small Business concerns will be eligible for award (size standard for associated NAICS is 1,000 employees). 

A small business concern, as defined by FAR 19.001, means any business entity organized for profit (even if its ownership is in the hands of a nonprofit entity) with a place of business located in the United States or its outlying areas and that makes a significant contribution to the U.S. economy through payment of taxes and/or use of American products, material and/or labor, etc. "Concern" includes but is not limited to an individual, partnership, corporation, joint venture, association, or cooperative. For more information, see 13 CFR 121.105. 

Additionally, for acquisitions conducted under a 100% Small Business Set-Aside, per FAR 19.505(b)(1)(i), “Limitations on Subcontracting”, the concern [small business prime contractor] will not pay more than 50 percent of the amount paid by the Government for contract performance to subcontractors that are not similarly situated entities [e.g. also small businesses]. Any work that a similarly situated entity further subcontracts will count towards the concern's 50 percent subcontract amount that cannot be exceeded.

This acquisition represents a follow-on requirement to active contract HHSN273201500010C, with Integrated Laboratory Systems.  The anticipated follow-on contract is anticipated to be a cost-plus fixed fee, term, level of effort contract with a base period of 12 months and nine successive 12-month term options for a total possible period of performance of 10 years (anticipated period of performance 6/1/2026 through 5/31/2036 if all term options are exercised).      

THE PENDING SOLICITATION WILL BE AVAILABLE ELECTRONICALLY ONLY.  OFFERORS ARE RESPONSIBLE FOR ROUTINELY CHECKING THE SAM.GOV CONTRACT OPPORTUNITIES WEBSITE FOR ANY POSSIBLE SOLICITATION AMENDMENTS THAT MAY BE ISSUED.  All responsible sources may submit a proposal, which shall be considered by the agency.  This Pre-Solicitation notice does not commit the Government to award a contract(s).  No collect calls or facsimile transmissions will be accepted.

AGAIN, THIS IS A PRE-SOLICITATION ANNOUNCMENT ONLY AND NO RESPONSES ARE DUE AT THIS TIME.

Notice history

Similar open opportunities

Opportunity Agency Set-aside Responses due
Pre-Clinical Models of Infectious Diseases United States · NAICS 541714 National Institute of Allergy and Infectious Diseases No set-aside

On GovTribe

Work this opportunity

  • Track it in your pipeline
  • Find teaming partners
  • Similar opportunities
  • Ask GovTribe AI about this opportunity

GovTribe for Federal Contractors