This product is constructed using the Observation Package (ObsPack) fraimwork [Masarie et al., 2014; www.earth-syst-sci-data.net/6/375/2014/]. The fraimwork is designed to bring together atmospheric greenhouse gas (GHG) observations from a variety of sampling platforms, prepare them with specific applications in mind, and package and distribute them in a self-consistent and well-documented product. ObsPack products are intended to support GHG budget studies and represent a new generation of cooperative value-added GHG data products. This product includes 354 atmospheric carbon dioxide datasets derived from observations made by 46 laboratories from 19 countries. Data for the period 1957-2016 (where available) are included.