Students of a Long Island middle and high school are now required to wear clear backpacks on campus as part of a new safety measure in the wake of the Valentine’s Day mass shooting that left 17 dead in Florida, an official confirmed to The Post.

The new rule at East Rockaway Junior-Senior High School in Nassau County went into effect this week after school administrators doled out the clear backpacks to the 550 students in grades seven through 12.

The students must wear the clear backpacks – which have the school’s logo on them — or no backpacks at all while on campus grounds during school hours.

“It is a reaction and a result of what occurred in Florida,” interim Principal Neil Lederer said, according to Newsday. “It’s another layer of protection. We want students to have the message that we are concerned about safety.”

The measure comes after the Feb. 14 shooting massacre at Parkland’s Marjory Stoneman Douglas High School when maniacal gunman, 19-year-old Nikolas Cruz, carried out the carnage using an AR-15.

Following the shooting, Stoneman Douglas students also had to abide by a mandatory clear backpack rule.

The backpack rule was widely criticized amongst Stoneman Douglas students on social media who said they felt like the clear backpacks were an invasion of privacy.

“Great. Because clear backpacks are gonna fix everything. I appreciate the attempt, but I’d rather have common [sense] gun laws than a clear backpack,” student Laura Hogg tweeted in March.

According to Newsday, the backpacks for the East Rockaway Junior-Senior High School were purchased from the Chicago-based manufacturer 4IMPRINT Inc.

A rep for the East Rockaway Junior-Senior High School did not immediately return a request for comment by The Post.