N.H. Code Admin. R. Env-Or 402.41
“Operating day” means a 24-hour period in which any regulated substance has been put into, stored in, or removed from a UST system.
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 402.32) (See Revision Note #2 at chapter heading for Env-Or 400)