This document is about a user guide for the Department of Labor's 2017 Form 5500 Private Pension Plan Research File. It explains the plans included in the file, the weighting methodology, the data editing process, and the generation of additional variables to classify and describe the pension plans. The guide provides details on the Form 5500 reporting requirements, the data selection and extraction process, and the steps taken to create a comprehensive research file for analyzing private pension plans in the United States.