Sen. Bill Diamond, D-Cumberland County, wasn’t satisfied with the four-year jail sentence handed to a Winslow man this month for his 12th drunken driving conviction.

Under state law, the maximum sentence that Clayton Bryant, 57, could receive was five years behind bars and a six-year driver’s license suspension. Bryant pleaded guilty to a charge of operating a motor vehicle under the influence of alcohol and two counts of violating bail conditions by consuming alcohol.

“Maine does not have a law that deals with multiple OUIs,” Diamond said.

So Diamond said he is proposing legislation that would put multiple-OUI offenders in a new category on their sixth offense. Offenders would receive a mandatory one- to 10-year sentence, a $3,000 fine and the permanent loss of a driver’s license.

Diamond, a Windham resident, said Maine has reciprocity agreements with most other states, which would prevent six-time-offenders from seeking a driver’s license outside of Maine.

“We honor their suspensions, and they honor ours,” said Diamond.

Diamond expects a public hearing on the issue to take place in February.

Diamond, who is the Senate chairman of the Criminal Justice and Public Safety Committee and a member of the Transportation Committee, co-sponsored “Tina’s Law,” which was enacted in August.

Named after Tina Turcotte of Scarborough, who was killed in an accident caused by a trucker with a long history of traffic violations, the law significantly increased the penalties for motorists who repeatedly drive with a suspended license or develop a pattern of major motor-vehicle violations.