The Northern Lebanon School District has an agreement with the Pennsylvania State Police to provide patrol assistance inside schools.
Troopers have been stopping in on an occasional basis, but the new effort will pay them overtime from district funds.
Officials said the district will save by not having to pay benefits to a full-time resource officer and gain the services of highly trained law enforcement.
Superintendent Don Bell said the district is home to nearly 2,500 students and the troopers will be visible in all six school buildings.
Bell said the troopers' role is not to be disciplinarians, but to be more involved in incidents that involve crime.
He said the trooper presence will deter threats and criminal activity from the outside.
The district faxed the signed agreement to the Pennsylvania State Police on Wednesday, and officials hope to have the effort up and running before the holidays.