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An official website of the United States government

Here’s how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Known Issues and Resolving Common Errors

Known Issues

  • When signing in from a full record page, the search query may be cleared and the page navigation buttons will no longer appear. Signing in from the search results page instead will retain the search query.

Resolving Common Errors

Error: “This catalog.nlm.nih.gov page can’t be found”.
Solution: Clear the cache and restart the browser.

Error: The LocatorPlus Catalog partially loads pages and appears to be stuck.
Solution: Reload the page.

Error: A search is returning nothing when there should be results.
Solution: Clear the cache of the browser and retry the search.

Reporting an Error
Please send corrections to NLM Customer Service

Last Reviewed: September 4, 2026