A bipartisan bill being prepared by two Southern Arizona representatives would more than double the daily expense pay that state legislators get for attending sessions in Phoenix.

Democrat Bruce Wheeler of Tucson and Republican David Stevens of Sierra Vista say current reimbursement rates for per-diem pay don't cover their costs.

The daily expense pay provided to Arizona lawmakers is in addition to their $24,000 annual salaries.

Lawmakers who live within 50 miles of the Capitol now get $35 a day while those who live further away get $60.

The bill would raise those rates to $97 for lawmakers living within 50 miles of the Capitol and $164 for those who live farther away.

The Arizona Republic reports that the bill is expected to be introduced this week.