Quoting from the report…
Best American Roots Song has been added to the American Roots Music Field. A songwriter’s award, it will encompass all of the subgenres of the Field (Americana, bluegrass, blues, folk, regional roots music), and puts the Field in line with the Rock, Rap, R&B, Country, and Gospel/CCM Fields, all of which have songwriters’ awards.
This new award was recommended by the Grammy Awards & Nominations Committee, and approved by the Board of Trustees during their Spring 2014 meeting. It will be included in the balotting for the 56th annual awards, to be distributed January 26, 2014.