“Annually” means at least once in each calendar year, but not later than 12 months after the prior annual event.

Source. (See Revision Note #1 at chapter heading for Env-Or 400) #10393, eff 9-1-13; ss by #12643, eff 10-10-18 (formerly Env-Or 402.02) (See Revision Note #2 at chapter heading for Env-Or 400)