IDs are now required to buy a Big Mac.

A McDonald’s in Virginia has decided to prohibit customers under 21 from entering the restaurant after experiencing a surge in violence that has been attributed to local high school students.

Situated in Franconia, Va., this particular branch is one of many in the region that has implemented the age-based restriction in order to safeguard its employees and well-behaved patrons from the disruptive behavior of teenagers from Thomas Edison High School in the vicinity.

Signs displayed on the establishment’s front entrance inform visitors of the temporary closure of dine-in service to individuals under the age of 21, citing recent incidents of violence involving students as the reason for this measure.

The ban was implemented about a week after footage showing the out-of-control teens getting into a brawl inside the eatery surfaced.

Several teenagers broke out into a fistfight and others danced on the tables as customers attempted to eat their food during the chaos, according to the video obtained by NBC Washington.

Customers above 21 years old who want to enter the restaurant must ring a doorbell and be let inside by an employee.

The store said it worked with Fairfax County Public Schools and the local law enforcement to determine the best policy to combat the unrest.

“We love being part of the Edison community and we value each and every customer,” the statement reads.

“We’ve enhanced our Franconia Road McDonald’s security measures in an effort to promote a safe environment for our customers and staff,” the store said in a statement to the outlet. “This policy was developed in partnership with local school officials with oversight from local law enforcement. This serves as a temporary fix as we work towards a long-term solution for all.”

The policy is only in place Monday through Friday and no timeline was revealed on when it would be lifted.

Customers and employees have called out the not-so-civilized behavior put on by the teens.

“These kids are off the chain. They have no respect, no discipline,” customers identified only as Stacey told NBC Washington. “And it seem like how they acting, their parents are allowing them to act.

“Like we’re sitting down eating, y’all smoking, y’all drinking, y’all cussing. Like, come on, y’all,” she added.

The fed-up customer sided with the owners for the age-restricting policy, saying the unruly guests were hurting business by driving customers away

Despite the 21-plus policy, parents and their children can still dine inside and an adult chaperon can bring up to four children with them.

The Virginia policy follows in the footsteps of a Brooklyn-based McDonald’s that enacted a similar age restriction policy.

The fast-food joint at Nostrand and Flatbush Avenues began only allowing customers over 20 years old to enter its store.

The February rule change, exclusively reported by The Post, came after a group of kids wearing ski masks swirled in after school and attacked a security guard, breaking a glass door.

Store manager Amber Hussain said she saw a group of approximately 15 teens enter the store and wreak havoc on the business during her year at the restaurant.

The hooligans are accused of “trashing the store,” including throwing ice at customers, snatching bags of food from Uber drivers and smoking weed inside the restaurant.