Dear CAM-chem users, We have just posted information about the scientifically validated component sets of CESM1.2.2:http://www2.cesm.ucar.edu/models/scientifically-supportedhttp://www.cesm.ucar.edu/experiments/cesm1.2/ Results from these model configurations have been published in Simone's paper:Tilmes, S., Lamarque, J.-F., Emmons, L. K., Kinnison, D. E., Ma, P.-L., Liu, X., Ghan, S., Bardeen, C., Arnold, S., Deeter, M., Vitt, F., Ryerson, T., Elkins, J. W., Moore, F., Spackman, J. R., and Val Martin, M.: Description and evaluation of tropospheric chemistry and aerosols in the Community Earth System Model (CESM1.2), Geosci. Model Dev., 8, 1395-1426, doi:10.5194/gmd-8-1395-2015, 2015. (http://www.geosci-model-dev.net/8/1395/2015/gmd-8-1395-2015.html) There is a release tag for CAM-chem as described on the experiments page mentioned above.Please let us know if you have any questions. We hope you will make use of this version in your current scientific studies.Louisa Emmons (Chemistry WG co-chair) and Simone Tilmes (Chemistry WG liaison)