Also among this year's nominees are Lucinda Williams, Al Anderson, Shawn Camp and Annie Roboff.
Steve Bogard, the longest-serving president in NSAI's history, chose not to seek another leadership term.
The Wilson-recorded "Heart Like a Truck" was named song of the year.
Launched by Reps. Ted W. Lieu and Ben Cline, the bi-partisan caucus will focus on policies that benefit independent songwriters and intellectual property concerns.
