"Cove base" means a flooring trim unit, generally made of vinyl or rubber, having a concave radius on one edge and a convex radius on the opposite edge, that is used in forming a junction between the bottom wall course and the floor or to form an inside corner.
N.H. Admin. Code § Env-A 1202.46
(See Revision Note at chapter heading for Env-A 1200) #9933, eff 6-1-11