This document is about the user guide for the 2019 Form 5500 Group Health Plans Research File, which is an edited dataset consisting of all employer-sponsored private sector welfare plans that are required to file a Form 5500 Annual Return/Report and offered a health benefit to the covered participants. It provides details on the selection of plans, determining the method of plan funding, weighting, editing, generated variables, and the contents of the 2019 research file package.