N.C. Gen. Stat. § 143-151.73 applies to tall buildings or structures that existed in an area surrounding major military installations upon the effective date of this Article as follows:

(1)        No reconstruction, alteration, or expansion may aggravate or intensify a violation by an existing building or structure that did not comply with N.C. Gen. Stat. § 143-151.73 upon its effective date.

(2)        No reconstruction, alteration, or expansion may cause or create a violation by an existing building or structure that did comply with N.C. Gen. Stat. § 143-151.73 upon its effective date. ?(2013-206, s. 1.)