Below you will find a table of the 2017 NAICS definition changes for NAICS sectors 51, 53, and 54. NAICS industries affected by the definition changes will be restated to the beginning of their time series.

For a full list of changes visit: https://www.census.gov/naics/reference_files_tools/2017_NAICS_Manual.pdf#page=649

For more information on the 2017 NAICS changes from the Economic Census, you can refer to the 2017 Bridge Statistics report that includes data for 2017 for industries whose NAICS codes changed from 2012 to 2017 and shows the components of the NAICS change. The first table of the report shows 2017 NAICS industries and their 2012 NAICS-based parts. The second table shows 2012 NAICS industries and their 2017 NAICS-based parts.