COLUMBUS, Ohio (WTVN) -- State lawmakers have struck a compromise on missed school days thanks to this winter's harsh weather.

A conference committee okayed a bill that gives schools four additional snow days. Schools would be required to use at least four of their five pre-scheduled calamity days.

"So they get a total of nine calamity days," said State Rep. Gerald Stebelton, a Republican from Lancaster.

The panel also removed a provision that would have required teachers to undergo professional development training. The decision followed an impasse last month over two competing versions of the bill.

"It's not something that we wanted to hold up the bill because we need to get this done," he said.

Snow, ice and sub-zero temperatures have forced many school districts to use up all of the five days already allowed. A survey earlier this year found that the average number of days missed by Ohio schools was nine, but some districts in eastern Ohio have more than doubled that.

Gov. John Kasich backed adding extra snow days on a one-time basis. The House and Senate must agree to the compromise before it goes to Kasich's desk for his signature. It would take effect immediately once it's signed.