The Board will grant a "classification AB" license in the branches of general building and general engineering to persons who are qualified to act as both general building (classification B) and general engineering (classification A) contractors. This classification is limited to those applicants or licensees who can show a sufficient degree of experience and financial responsibility to support an unlimited license in both the A and B classifications.
Nev. Admin. Code § 624.180
NRS 624.100, 624.220