Article updated: 12/23/2013 4:39 PM

Northwest Suburban High School District 214 recently banned medical marijuana on school property.

Officials inserted language into their policy that prohibits students, staff and visitors from possessing, or being under the influence of medical marijuana while on school property.

Superintendent David Schuler said it also will be part of the contract with all the bus and taxi companies that transport District 214 students.

"Even though they are not our employees, they are still bound by our policies," he said. "If they want to drive a bus that services District 214, they would have to agree to comply with these regulations."

District 214 board member Dave Petro reminded his colleagues that even though medical marijuana will be legal in Illinois, there are still laws against driving under the influence. Possession, sale and use of marijuana is still also illegal at a federal level.

"We can make stiffer regulations than the law does in some situations," Schuler said.

The ban includes students or staff who may be chronically ill and use legally prescribed medical marijuana.

"We have the ability to not allow that on our campuses and certainly not for any of our contractors," said Board President Bill Dussling. "It's just not going to be a part of our system."

Although the law allowing medical marijuana in Illinois takes effect Jan. 1, it will likely take until summer to work out the regulations.

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No medical marijuana for District 214 students, staff, bus drivers