"Submerged fill" means the method of filling a delivery tank truck or storage tank whereby product enters within 150 mm, equivalent to 5.9 inches, of the bottom of the tank truck or storage tank. The term includes bottom filling of delivery tank trucks and storage tanks.
N.H. Admin. Code § Env-A 1204.40
(See Revision Note at chapter heading for Env-A 1200) #9933, eff 6-1-11