A proposed no-fault compulsory third party scheme for WA will be approved, according to reports citing leaked budget papers.

However, there is no indication which of the possible models the State Government favours.

A green paper published last October sought submissions on three options: no change; a no-fault scheme for all catastrophically injured people; and a no-fault scheme just for those not currently covered.

About 92 people are catastrophically injured in crashes in WA each year, and about 44 receive no compensation because they cannot assert fault against another driver.

Under the third option, which was supported by legal groups, victims who can prove another driver’s negligence would be eligible to claim lump sums.

The Insurance Council of Australia and insurers including IAG and QBE backed the second option, saying it is more consistent and fair.

The Premier’s office has declined to comment on speculation. The state’s budget will be handed down on May 14.