Minnesota’s education funding dispute means more than 800 state education workers will begin receiving layoff notices June 1.

Gov. Mark Dayton said he regrets the need to upset workers’ lives, but state law requires that workers who could be laid off receive a month’s advance notice, even if his education funding differences with lawmakers could be settled before July 1.

Both Democratic-Farmer-Labor Party member Dayton and Republican House Speaker Kurt Daudt of Crown said this week that a special legislative session to fix the funding quarrel almost certainly would not be called before the layoff notices are mailed.

Dayton on Thursday vetoed the $17 billion education spending bill for 2016-17. While it included $400 million in additional money, it does not fund universal pre-kindergarten.

Minnesota Management and Budget says that without an education bill when the new fiscal year begins July 1, the Education Department will shut down and many school funds would not be available.

However, the state could go to court as it did during 2011 and 2005 partial government shutdowns and ask a judge to declare some employees and some funds critical to the state so that they be allowed to continue even without a bill.

Some 400 people work for the Education Department.

The Dayton administration says also laid off would be 300 workers at the state academies for the deaf and blind and 120 at the Perpich Center for Arts Education, without a signed education funding bill.

Also, the administration said “major cuts” would be needed, including layoffs, at local schools if there is no legislation.

While the governor and legislative leaders have not predicted an extended education funding argument, the differences are deep and five months of a regular legislative session did not bridge them.

Dayton wants to spend $171 million for schools to be allowed, but not required, to start half-day classes for 4-year-olds. Republicans and many DFLers prefer to put any new money to per-pupil funding that could be used for needs other than prekindergarten.

Daudt said education negotiations before the special session should begin where they left off shortly before the Legislature adjourned at midnight Monday: with the two sides $25 million apart and no prekindergarten funding. To reach a deal, Dayton dropped his prekindergarten program in the last hour of session.

Dayton said he does not know where he and Daudt will begin negotiations, scheduled for Tuesday.

Correction: This story’s headline previously stated the wrong date for layoffs.