Amends GS 67-4.1 (pertaining to procedures for dogs designated as dangerous) as follows. Enacts new subsection GS 67-4.1(d) that provides a procedure for an owner of a potentially dangerous dog designated as such by the county or municipal authority responsible for animal control to request in writing, at any time more than 18 months after the designation, that the authority set aside the designation. Requires an application and an assessment of the dog by a person approved by the authority and accredited by the Certification Council for Professional Dog Trainers or another accrediting body recognized and approved by the authority. Requires the assessment to include, at minimum, an evaluation of the behavior underlying the declaration that the dog was a potentially dangerous dog and the owner's or keeper's ability to manage the dog. Sets forth four factors the authority must consider in ruling on the application. Requires the authority to issue written findings. Creates immunity for any municipality, county, or any of their officers or employees for a decision made in accordance with new GS 67-4.1(d). Effective October 1, 2023.