Web Harvesting Services - Library of Congress

Amendment 5 - The purpose of this solicitation amendment is to extend the proposal due date by one week. Proposals are now due by 5:00pm Eastern time on March 3, 2026. This extension does not extend the due date of sample web crawl transfer information

which was required by 5:00pm eastern time on February 17, 2026.

Apart from this, no other changes are made to the solicitation and its attachments. It is the responsibility of the offeror

or interested party to monitor changes made to the solicitation on SAM.gov.

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Amendment 4 - The purpose of this solicitation amendment is to provide an updated version of the Q&A document, Attachment J9, dated 02/13/2026. This version of Attachment J9 provides answers to questions 31 and 32, which are marked in red text.

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Amendment 3 - The purpose of this solcitation amendment is to provide an updated version of the Q&A document, Attachment J9, dated 02/03/2026. This version of Attachment J9 provides answers to questions the Library has received in reponse to the soliciation.

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Amendment 2 - The purpose of this solicitation amendment is to update the submission due date in Attachment J3 and to provide Attachment J9, which provides answers to questions the Library has received thus far.

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Amendment 1 - The purpose of this solicitation amendment is to update the information submission date in Attachment J2a – Sample Web Crawl Requirement. Please see the attached amendment document.

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This public notice is a combined synopsis/solicitation for commercial supplies and services, prepared in accordance with FAR Part 12 and utilizing FAR Part 15 procedures. The solicitaiton is being released as a firm-fixed price contract competition.

The Library of Congress (Library) requires contract support to enable the systematic harvesting of content at-scale from the web, based on instructions from Library staff, to provide temporary access to the content and required crawl reports for quality review, and to enable transfer of content to the Library for preservation and public access.

Please see below for the SF1449 Request for Proposal document 030ADV26R0010 for the full details of the requirement.

Questions are due no later than 12:00 Noon EST on 02/02/2026. Answers will be posted as an amendment to the solicitation.

Proposals are due no later than 5:00 PM EST on 02/24/2026.