LOUISVILLE, Ky. (AP) -- Kentucky Education Commissioner Terry Holliday says he'll seek a federal waiver that would allow the state to delay spring testing a few weeks.

The request comes as Kentucky school districts have dealt with snow days and swine flu. Holliday said Friday that some districts have lost up to 27 days. All school districts have missed some days because of snow, with eastern Kentucky generally the hardest-hit.

Holliday said even if the state receives a federal waiver, he may decide not to move the testing window.

The state would need a waiver because postponing the scheduled April 19-30 testing period would mean a delay in getting scores to schools and parents. Holliday said if the testing is moved, it would likely be to the second or third week of May. All districts must test during the same period.

The state is negotiating with its private contractor, Measured Progress, to come up with some options that would allow scores to be returned before the start of the next school year, said Lisa Gross, spokeswoman for the Department of Education.