There are only five locations authorised by the Environment Protection Authority where sea burials are allowed in New Zealand. The location 70km off Cape Brett covers a 4 nautical mile radius (about 7km). No sea burials can take place in Northland outside that authorised area.
Ms Taylor said specific requirements must be met to gain approval for a sea burial, including the casket.
"Prior to the burial at sea, the deceased is placed into a weighted canvas bag then placed into a weighted casket to prevent the deceased or casket returning to the surface. At the appointed time and place, the [bio-degradable] casket is released down a slide system and falls immediately to the ocean floor."
She said Newberrys used lead weights which was dependant on the weight of the deceased. But before a sea burial was carried out a proposal form must be completed and provided to the EPA, at least three working days before the burial.
Dates, times and co-ordinates of the burial position must be submitted along with information about the ship or aircraft used and a doctor's certificate or coroner's authorisation.
Ms Taylor said Newberrys had only facilitated sea burials where boats were used and said it needed to be big enough to carry family, an EPA official, a funeral director and the casket holding the deceased.
The last time the company helped facilitate a sea burial was in 2009.