N.C. Gen. Stat. § 163-227.1
A voter applying for an absentee ballot for a primary election who will be eligible to vote under this Article on the day of the primary and second primary shall be permitted by the county board of elections to indicate that fact on that voter's application and that voter shall automatically be issued an application and absentee ballot for the second primary if one is called. The county board of elections shall consider that indication a separate request for application for the second primary and, at the proper time, shall enter that voter's name in the absentee register along with the listing of other applicants for absentee ballots for the second primary.
In addition, a voter entitled to absentee ballots under the provisions of this Article who did not make application for the primary or who failed to apply for a second primary ballot at the time of application for a first primary ballot may make a written request for absentee ballots for a second primary not earlier than the day a second primary is called and not later than the date and time provided by G.S.163-230.1.
All procedures with respect to absentee ballots in a second primary shall be the same as with respect to absentee ballots in a first primary except as otherwise provided by this section.
N.C. Gen. Stat. § 163-227.1