Unfortunately this isn't available for 2016 but definitely for 2017.
Beginning with tax year 2017, qualified active volunteer emergency responders, rescue squad members, and firefighters receive a refundable income tax credit equal to $250 beginning
with the second taxable year in which the qualified active volunteer is
included on a certified list. Qualified active volunteers accumulate
points for service and emergency service related training and
activities. Each city, village, or rural or suburban fire protection
district must file a certified list of those volunteers who have
qualified as active emergency responders, rescue squad members, or
firefighters for the immediately preceding calendar year with the
Department of Revenue by each February 15.
Please click this link for more information:
http://www.revenue.nebraska.gov/info/legislation/legis_changes/2016_leg_chgs.html