The Northern Territory has signed on to the federal government’s national disability insurance scheme, leaving Western Australia as the only holdout.

Prime Minister Julia Gillard and NT Chief Minister Adam Giles signed an agreement on Saturday that will see DisabilityCare Australia rolled out across the territory by July 2019.

The scheme will eventually cover an estimated 7000 NT residents with significant or profound disabilities.

‘‘The NDIS is the reform of a generation and has the potential to transform the lives of people in the Northern Territory with disability, their families and carers,’’ Ms Gillard said in a statement.

Under the agreement, the scheme will launch at a single site in July next year.