Nominations for ACS fellows opened February 1, 2017 and will close at 11:59PM on April 1, 2017. The American Chemical Society (ACS) Fellows Program was created by the ACS Board of Directors in December 2008 to recognize members of ACS for outstanding achievements in and contributions to science, the profession, and the Society. Eligibility criteria for nominees and nominators and the selection criteria can be found here: http://www.acs.org/content/acs/en/funding-and-awards/fellows/eligibility-criteria.html
Nominations come from four sources: ACS national committees, ACS technical divisions, ACS local sections, and individual ACS members. See http://www.acs.org/content/acs/en/funding-and-awards/fellows/nomination-types.html.