AMARILLO, Texas (CBSDFW.COM/AP) — A school district in Texas will begin drug testing students as young as 12 years old who are interested in playing sports or participating in other extracurricular activities.

Testing will begin with the resumption of classes next month at Bushland Independent School District and will be required of students in grades seven through 12 who play in the band, sit on the student council, assemble a yearbook, play chess or participate in other clubs. Students who receive a permit to park at the high school also will be subjected to testing.

Superintendent Chris Wigington told KVII the district doesn’t have a drug problem but that it’s trying to get ahead in terms of keeping students safe and in a drug-free environment.

“We’ve discussed drug testing policy for about a year now and the board wants to be proactive,” Wigington said. “They want our kids to have a drug-free environment. We want out kids to make great decisions.”

“There isn’t an apparent drug problem,” Assistant Superintendent Angie Watson added, “but that isn’t to say that kids across the nation are not being introduced to drugs and getting into drugs. We’re just trying to be proactive. We’re giving them a reason to not do that.”

The school board a few months ago gave the OK for the development of a policy and then district officials released it to the public last week, Watson said. There are about 700 students in grades seven through 12 in the district, which is just west of Amarillo. Either saliva swabs or urine samples from those students involved in extracurricular activities will be tested.

Administrators will check for seven substances — including alcohol, marijuana, heroin and opioids — and Watson said funds were set aside in the school budget this year to cover costs. Some students also will be subjected to random follow-up testing to ensure they’re adhering to the policy.

A school district in Nebraska took the unusual step last month of adding nicotine to the list of drugs to be randomly tested. The move by Fairbury Public Schools drew criticism from the American Civil Liberties Union of Nebraska.

Several districts in Texas have drug testing in place. The U.S. Supreme Court in 2002 broadened the authority of public schools to test children for illegal drugs by allowing for the inclusion of middle and high school students participating in extracurricular programs, according to the National Institute on Drug Abuse. Testing had previously been allowed only for student athletes.

(© Copyright 2019 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)