The modernized Technical Bulletin website is here!
Read more about the modernization release schedule in this announcement.
Contact the NLM Help Desk with any questions or concerns.
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2011-12-21
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2025-12-02
Editor's Note: See Phase Two announcement published on April 28, 2026.The National Library of Medicine announces a modernized, user-focused NLM Technical Bulletin website. The modernization includes improvements to the site’s architecture, ... ...
2025-08-29
The ClinicalTrials.gov Protocol Registration and Results System (PRS) continues to evolve, bringing new features and enhancements that improve usability and expand functionality for clinical trial sponsors and researchers to register proto ... ...
2025-06-12
In August 2024, the Modernized Protocol Registration and Results System (PRS) became the primary website for Protocol Registration. The PRS is used by researchers to register studies on ClinicalTrials.gov. Users logging into PRS first see ... ...
2024-12-16
Join us for the next National Library of Medicine (NLM) Office Hours on Tuesday, January 28, at 1 p.m. Eastern Time. This session will focus on NLM Digital Collections. Digital Collections provides access to NLM's distinctive digital conte ... ...
2026-02-17
PMC will make major changes to our Article Dataset Distribution Services in 2026. In August 2026, you will need to access full text article data files through the PMC Cloud Service instead of the PMC FTP Service. This change will provide y ... ...
2026-01-21
Scope of the 2026 Winter EditionThe major focus of the 2026 winter edition was the evaluation of the 2026 MeSH (Medical Subject Headings) vocabulary for inclusion in the Classification index. Several additions and changes were made to the ... ...
2026-01-12
Date-Range Facet Returns to NLM Digital CollectionsNLM Digital Collections has implemented a new date-range facet that allows users to select a specific range of years when searching for our digitized content, which includes books, videos, ... ...
2026-01-12
PubMed Central (PMC) will be moving to updated versions of the ESearch and EPost E-utilities APIs in early February. These updated versions will use the same technology as the updated PMC website search which was released in September 2025 ... ...
2026-01-06
Update: As of January 20, 2026, the 2026 base files for all MARC, NLMXML, and MARCXML products have been posted here. A reminder that any records updated between January 1 and 13 are only available in the base file. Weekly Catfile distribu ... ...