Minors who want to watch a high school football game in the District now need an adult chaperone, city school officials announced Friday.

The new District of Columbia Interscholastic Athletic Association rules went into effect Friday and will last through Oct. 10, per a notice sent out by District of Columbia Public Schools. The regulations came from “multiple instances of spectator conflict” at games.

Attendance is limited to adults or minors accompanied by adults, with each adult allowed to bring up to three minors. People can’t enter facilities hosting the football games after the end of the third quarter. Spectators who leave can’t reenter.

Percy Brooks, whose son attended an Archbishop Carroll football game last week that had a stabbing afterward, told Washington’s WJLA-TV, “It’s usually not the kids that go to the schools. It’s always kids outside that are causing all the ruckus.”

The notice didn’t specify whether students ages 18 and up will qualify as adult chaperones for others.

Concession sales will end after the third quarter, DCPS said in its notice. Home and away fan sections will be separated, and an increased presence of school staffers in the stands will be “working and engaging with students.”

“At some of our high school football games, we are going to require that students be accompanied by an adult, that there are going to be more school officials at the games, and we are asking all kids and families to follow the instructions of school personnel when they arrive,” Mayor Muriel Bowser said at a press conference Friday.

Affected schools are working to reschedule games to start between 4 p.m. and 5 p.m. instead of between 6 p.m. and 7 p.m, and some schools may reschedule Friday games to Thursdays or Saturdays, DCPS said.

• Brad Matthews can be reached at bmatthews@washingtontimes.com.