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MSHA Data File Downloads


Data files on mining accidents, injuries, fatalities, employment, production, etc., are collected by the Mine Safety and Health Administration (MSHA) under Part 50 of the U.S. Code of Federal Regulations. Original raw data files are released periodically to the public on the MSHA web site. As a convenience, NIOSH has converted MSHA data to SPSS (includes labels and coding information) and dBase IV file formats.

To reduce the file sizes, the ZIP file format has been used for data compression and storage. Although computer set-ups will vary, Microsoft has built-in zip support for the compressed folders. If you have the SPSS or dBase programs on your computer, you should be able to download the files by clicking on the link and selecting Open or Save. If you intend to use the dBase IV file with another application (e.g., Microsoft Access or Excel), you may find it best to save the compressed folder to your computer, open the folder, and copy the file to your computer. You can then open the .dbf file with the compatible application.


  • Because these data have been obtained from sources outside of NIOSH, they are provided on an "as-is" basis.
  • Several recoded and computed variables have been added to the information provided by MSHA.
  • Beginning with the 2006 data, fatalities determined to be chargeable after the MSHA data files were closed out are added to the data files maintained by NIOSH. Chargeback fatalities included in NIOSH files: 2006 (n=1), 2007 (n=1), 2009 (n=1), and 2010 (n=1).
  • In the 2011 address/employment closeout file, Mine IDs 3601527 and 3304321 reported coal employment and production, along with stone employment. This has resulted in duplicate records for these Mine IDs. In previous calendar years both of these mines were listed as coal mining operations. In the latter part of 2011, these mines became stone mining operations. When counting mines, the duplicate records for coal need to be excluded and both mines should be considered stone operations since that was their status at the end of 2011.
  • The raw data closeout files posted by MSHA for 2013 differ slightly from the dynamic data MSHA used to generate their "Mine Injury and Worktime Reports for Coal and Metal/Nonmetal."
  • Beginning in 2013, the JOBTITLE and JOBTITL2 variables have been discontinued by MSHA and replaced with a new expanded "OCCUPATION" variable.
  • See Statistical Methodology for more information.



Disclaimer: NIOSH maintains this page to enhance public access to general summary information on the health and safety of miners. Some of the links on this page point to information created and maintained by other organizations. NIOSH is not able to control the accuracy, timeliness, or completeness of this information and, therefore, should not be held responsible for data obtained from other organizations.