Certified Bottled Water in US

Neither EPA nor FDA certify bottled water.However,
consumers may notice a logo or seal from three other
organizations on the label.
The International Bottled Water Association (IBWA) is a trade
organization for water bottlers. IBWA members must meet the
organization’s “model code”and are subject to annual inspections
by an independent third party. Bottlers belonging to
IBWA frequently indicate membership on their labels.
NSF International - Bottled water certified by NSF undergoes
additional testing by unannounced annual plant
inspections. NSF certifications mean that the bottler
complies with all applicable FDA requirements, including
good manufacturing practices.
Underwriters Laboratories,Inc.(UL) is an independent
accredited testing and certification organization that
tests bottled water to FDA, state, and IBWA model code
requirements.