Independent Senator Lidia Thorpe says she will vote against National Disability Insurance Scheme legislation after the government announced they have come to an agreement with states and territories over the bill.

On Wednesday, the NDIS Minister Bill Shorten said the government had agreed to amendments on the contentious National Disability Insurance Scheme Amendment (Getting the NDIS Back on Track No. 1) Bill 2024.

"This will always be a work in progress but as we have seen, we are committed to making sure the scheme is here for the future. It is going at an unsustainable rate," Mr Shorten said.

"The truth is the NDIS is a great scheme. Australia as a country is investing more per capita on profoundly and severely impaired Australians than any other nation on the planet. That is something we should all be proud of. But we can make the scheme better."

Senator Thorpe said none of the decisions should be made by people who don't have disabilities.

"The NDIS was already failing First Peoples, who have been denied basic levels of service. This Bill will only make things worse," she said.

The agreed-upon amendments between the commonwealth and the states will introduce faster time-frames for approving changes to the rules governing the NDIS, as well as a new dispute resolution approach which will escalate issues to the states.

Echoing statements by the First Peoples Disability Network (FPDN) on Tuesday, Senator Thorpe said there were concerns the bill would strip the NDIS of funding and undermine the human rights of people with disabilities.

"Bill Shorten has blood on his hands for doing this dirty deal with the Coalition," the Gunnai, Gunditjmara and Djab Wurring senator said.

"It's a devastating blow to the community that undermines decades of progress on the rights of people with disabilities and will result in lives lost.

"The First Nations Disability Network has outlined serious concerns about this legislation. But again, it appears Labor are ignoring First Peoples, preferring to listen to the Coalition instead."

The FPDN said the Scheme will be "untenable for First Nations peoples" if it passes.

FPDN Head of Policy, Woppaburra woman Tahlia-Rose Vanissum, said the community is "terrified at the implications of the current bill" if it passed in its current state or with the proposed amendments.

"People will be worse off if this passes, our communities will be worse off," she said.

Senator Thorpe said people with disabilities in the criminal justice system will now find it even harder to get the support they need.

"This country criminalises disabled people in mass numbers. You only need to look at the disproportionate rates of incarcerated people with disabilities to see this," she said.

"It will further criminalise and institutionalise people with disabilities, particularly First Peoples living with disabilities. It's unjust and will damage our communities as a whole."

A vote on the bill's amendments will take place in the Senate on Thursday after the government and the opposition voted for a closure motion.