The Aboriginal community feels betrayed by news the Tasmanian Government will reopen 90 kilometres of tracks in the Arthur-Pieman Conservation Area by Christmas, the Tasmanian Aboriginal Centre says.

The previous government closed 15 tracks in the state's north-west in 2012 to protect threatened species and Aboriginal heritage sites, angering four-wheel drivers.

The Liberals promised to reopen the tracks if they won government, and have confirmed that will happen within weeks.

Tasmanian Aboriginal Centre state secretary Trudy Maluga said the Aboriginal community wanted consultation from the Government before the announcement.

"We do feel betrayed, very saddened and very disgusted because at the end of the day our heritage can't be rebuilt," she said.

"When four-wheel drivers go over at those tracks and destroy our heritage, it's gone forever."

A conservation group wants the Federal Environment Minister Greg Hunt to assess the decision.

Scott Jordan from the group Save the Tarkine said under the Environment Protection and Biodiversity Conservation Act the project must be called in for a federal assessment.

"The Minister must have the project assessed and then make an approval decision following that assessment," he said.

"We are now calling on the Federal Minister to call this project in and commence that assessment."

Mr Jordan has also condemned the State Government's decision.

Thousands protested against the 2012 closure of four-wheel drive tracks in the Arthur Pieman Conservation Area. ( ABC: Selina Bryan )

"These tracks were closed under the previous government after extensive consultation and for the purpose of protecting significant Aboriginal sites from damage," he said.

Earlier in the week the Liberal Member for Braddon, Adam Brooks, said the Government was sticking to its promise.

"The initial process was always flawed, where rather than engaging with the community they just locked the place up and stopped access for many people," he said.

Four-wheel drivers will be able to access the full length of the Arthur Pieman Conservation Area.

Access will be subject to a range of conditions, aimed at protecting the environmental and cultural values of the area.

Conditions will include obtaining a special permit, adherence to strict rules around driver behaviour, and access only during the non-winter months.