School safety agents across New York City will be outfitted with bullet-resistant vests as soon as next school year as the NYPD tries to tamp down the growing increase in youth-on-youth violence, the Daily News has learned.

The Police Department last week ordered that school safety agents — unarmed NYPD employees posted in city schools — will be “issued a durable and lightweight ballistic resistant vest, funded by the department.”

The decision was made after a pilot program in which 300 school safety agents across the city were given vests.

“The pilot program was very successful and aided in the safety of our school safety agents,” an NYPD spokesman said, adding that the vests will be “mandatory for all members assigned to the NYPD School Safety Division to wear while performing their duties in uniform.”