"Triennially" means at least once in each 3-calendar-year period, but not later than 36 months after the prior triennial event.
N.H. Admin. Code § Env-Or 402.67
"Triennially" means at least once in each 3-calendar-year period, but not later than 36 months after the prior triennial event.
N.H. Admin. Code § Env-Or 402.67