Plans for new speeding penalties will be brought before cabinet this morning.

The changes would see drivers fined - depending on how much over the speed limit they are.

Anyone breaking the limit by more than 30 kilometres an hour could be prosecuted and fined 2,000 euro.

The Transport Minister has denied there's a cabinet plot to stop his proposed changes to speeding fines.

Some rural ministers are said to be against the changes, believing they're too harsh.

But Minister Shane Ross insists there's no effort from members of the cabinet to stop the legislation being passed.