"Existing facility" means a facility that was in operation or for which construction commenced on or before July 1, 1980, or on the effective date of any statutory or regulatory amendments that render the facility subject to permit requirements under RCRA or RSA 147-A or rules adopted pursuant thereto.
N.H. Admin. Code § Env-Hw 103.48
(See Revision Note at chapter heading for Env-Hw 100) #9360, eff 1-28-09