Amends GS 143-138 (state building code) to require the Building Code Council to provide an exemption from the requirements for installing an automatic sprinkler system in buildings that meet the following: (1) has one floor; (2) meets all requirements of 29 CFR 1910.142, as amended; and (3) meets all requirements of the Migrant Housing Act of North Carolina (Article 19 of GS Chapter 95) and rules implementing the Article. Provides that migrant housing and migrant are defined as in GS 95-223. Makes technical changes. Effective October 1, 2013.