N.C. Gen. Stat. § 58-3-152
Excess liability policies; uninsured and underinsured motorist coverages.
§ 58-3-152. Excess liability policies; uninsured and underinsured motorist coverages.
With respect to policy forms that provide excess liability coverage, an insurer may limit or exclude coverage for uninsured motorists as provided in G.S. 20-279.21(b)(3) and for underinsured motorists as provided in G.S. 20-279.21(b)(4).