Department of Primary Industries, Parks, Water and Environment secretary Tim Baker signed off on the 15 names this week, which will be added to state mapping products and the LIST.

It follows the approval of 13 names in 2012 under the previous policy of using palawa kani, before this process was stopped under the Hogdman Government.

The North East names are Leengtenner/Tomahawk River, Leumerrernanner/Cape Portland, Polelewawta/Little Forester River, Poonerluttener/Mount Cameron, Tebrakunna/Cape Portland area, Tangumrounpeender/Waterhouse Point and Konewongener/Mount Horror.

MORE ON THE ABORIGINAL PLACE NAMING PROCESS:

Dual names put forward for Eddystone Point and Mount William were not approved.

Tasmanian Regional Aboriginal Communities Alliance co-chair Patsy Cameron AO said the names were an important milestone for the state.

"Through speaking these names and sharing them with the wider community we honour the spirit of our ancestors and our deep connection to country," Dr Cameron said.

A reference group helped to develop the names, all of which were proposed by the Melythina Tiakana Warrana Aboriginal Corporation and all relied upon accounts by George Augustus Robinson from 1830-31, according to the Placenames Tasmania website.

The Aboriginal groups visited various sites last year with Dr Sarah Moore from the University of New South Wales as part of the new methodology.

The process has encountered criticism from the Tasmanian Aboriginal Centre, which has been developing palawa kani for over 30 years from all historical records for accuracy, and using the international phonetics alphabet to simplify pronunciation.

This system was used for the first 13 place names, including kanamaluka/Tamar.

TAC spokesperson Nala Mansell said they were "disgusted" with the state government over the new process.

"They have now reached out to different organisations and offered them the opportunity to pluck names out of the air, or out of journals by colonists, in an attempt to disregard 30 years of work by the Aboriginal community," she said.

"There are so many different recordings or so many different colonists and explorers, some who thought they heard words spoken in certain ways. George Augustus Robinson listed certain Aboriginal names and then acknowledged he got them wrong."

Ms Mansell said the dual names would not impact the TAC's continued development of palawa kani.