Los Angeles County health officials announced Tuesday that they would not consider any waiver applications for in-person classes at elementary schools because the county’s case rate is too high.

The waiver system, announced by the state Monday, allows elementary schools to petition the county to reopen their in-person instruction for students in grade TK to 6.

However, the state health department issued guidance that says counties with infection rates above 200 cases per 100,000 residents would not extend waivers. LA County’s case rate is at 355 per 100,000 residents, according to the health department. Officials said they would reconsider the decision once the case rate falls to the recommended levels.

A spokesman for Long Beach Unified School District said none of its schools had been pursuing a waiver.

“We know that to many families, this is a disappointing announcement, but it’s based on the existing science and data that is guiding all of our decision-making,” county officials said in a news release. “We need to ensure the health and safety of our children, school teachers and staff and all of their families.”

By state order, all schools in the county, including private schools, are closed for in-person teaching of students.