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readme.pdf [PDF 65 KB, 2 pages]

MUST READ – Instructions for downloading the LTAS.NET software. If these instructions are not followed the system will not work with limited administrative privileges. (Last updated 09/2013)


Latest version of LTAS software.  Be sure to read the Installation Instructions! (Last updated 07/2013)


Program to upgrade from LTAS.NET version 1.2 or later (last updated 09/2013)

LTAS.NET Manual [PDF 1811 KB, 68 pages]

User manual in Adobe Acrobat format (Last updated 9/10/2013)

Appendix B could not be included on this web page because it did not pass Section 508 accessibility tests. If you need Appendix B before it is updated you may request a paper copy through the Life Table Analysis System Contact NIOSH page.

LTAS.NET FAQ [PDF 193 KB, 9 pages]

Frequently Asked Questions for LTAS.NET (Last updated 03/2013)

LTAS.NET Neurodegenerative UCOD rate file (
LTAS.NET Neurodegenerative MCOD rate file (

Neurodegenerative rate files based on US MCOD rate data between 1960-2007. See LTAS NEWS for more information.

LTAS-Major-Differences.pdf [PDF 30 KB, 2 pages]

Major differences between LTAS.NET and PC-LTAS

LTAS-Major-Changes.pdf [PDF 23 KB, 1 page]

Major changes in LTAS.NET version 3.0, compared to LTAS.NET version 2.0 (Last updated 03/2013). The U.S. Government's Official Web PortalDepartment of Health and Human Services
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