The Maryland state school board has set guidelines for granting waivers to Gov. Larry Hogan's post-Labor Day start mandate.
Following Hogan's second executive order, the state board said it will give waivers only to schools or school systems that meet one of two criteria.
An individual school can apply if it has adopted an innovative school schedule because it is low-performing, at-risk, or a charter school. And a school system can apply if it was closed for 10 days per year for weather in either of the past two years.
State officials say there are several counties that meet the standard.
Any waivers that the board grants will be only for the 2017-18 school year.