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Crosswalk Files

Crosswalks connect occupations in the O*NET database to other classification systems. Use these files to relate external data to O*NET-SOC occupations, or to link O*NET data to occupations in another classification. In cooperation with the National Crosswalk Service Center (NCSC) external site, crosswalks are available to military, education, apprenticeship, SOC, and other systems.

Military Occupations

The military search within O*NET OnLine and My Next Move for Veterans combines several sources of military occupation linkages. For details, see the Military Transition Search report.

The search is based on data from the MOC crosswalk by the Defense Manpower Data Center (DMDC) external site, and supplemented with data from Army COOL external site, Navy COOL external site, Marine Corps COOL external site, and Air Force COOL external site projects and from an additional enhanced analysis external site for key military occupations, which was commissioned by the U.S. Department of Labor working in collaboration with the Department of Defense, per the specifications of Section 222 of the VOW to Hire Heroes Act.

Education (CIP), DOT, MOC, Apprenticeship (RAPIDS)

These crosswalks are provided by the National Crosswalk Service Center (NCSC) external site, a technical resource for dealing with occupational and training program classification systems. The NCSC is funded by the U.S. Department of Labor, Employment and Training Administration (ETA) external site through the Analyst Resource Center (ARC) external site. The center's mission is to maximize the effective and efficient use of occupational information by providing specialized occupational tools (files, reports, software) and technical assistance to users and producers of occupational information.

In addition to the crosswalks listed below, the NCSC maintains alternate file formats (Microsoft Access, SAS/PC) for most O*NET Center downloads. For more information on these files, visit their O*NET 21.3 external site, Supplemental Files external site, and O*NET Database Directory external site pages. If you have questions about the NCSC or its products and services, you can contact them at

The crosswalk files below include: Classification of Instructional Programs (CIP), Dictionary of Occupational Titles (DOT), Military Occupational Classification (MOC), and Registered Apprenticeship Partners Information Data System (RAPIDS). The MOC crosswalk is a subset of data from the MOC file listed above.

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Standard Occupational Classification (SOC)

Occupations in the O*NET database are based on the Standard Occupational Classification (SOC) external site system. Visit our O*NET-SOC Taxonomy page to learn more.