Gov. Rick Snyder and his lieutenant governor have signed 603 laws since taking office in 2011, a pace not seen in years.
Mlive.com says the Legislature has kept the governor busy since the 2010 election put Republicans in control of state government.
Snyder spokeswoman Sara Wurfel says the governor is focused on quality, not quantity. Republicans have changed the state's tax structure, made motorcycle helmets voluntary and passed laws that haven't been friendly to unions.
The laws haven't always survived court challenges. A federal judge recently halted a law to stop payroll deduction as a way for school employees to pay union dues.
Mlive.com says the 603 new laws roughly match the number signed by Gov. Jennifer Granholm after 18 months in office.