Collective bargaining bills abound.

• Position: TRENDS AND TRANSITIONS

Although Indiana, Ohio and Wisconsin have garnered the lion's share of media attention on collective bargaining, interest in the issue extends far beyond those battleground states. As of early May, 792 bills had been introduced in all 50 states so far this year. More than 500 of them seek to curb the activities of public sector unions and workers, including state employees, teachers, firefighters, police and transit workers. The following 14 states have enacted laws, and some passed more than one bill.

* Arizona: Limits employees' rights to picket and strike. Allows bidders on public contracts to not enter into agreements with unions.

* Colorado: Requires all public procurement contracts to be open to the public.

* Idaho: Limits union rights in teacher contracts and changes salary and evaluation provisions. Prohibits bidders on public works contracts from using union dues as a wage subsidy.

* Indiana: Limits the collective bargaining rights of teachers.

* Michigan: Allows the state to take control of local governments and appoint an emergency manager with authority to amend or terminate collective bargaining agreements.

* Montana: Lengthens the time miners can work, including the hours under collective bargaining agreements.

* New Hampshire: Repeals the law that continued public employee agreements and offered dispute resolution.

* New Jersey: Establishes arbitration...