Nassau County Executive Laura Curran says the county is cracking down on unlicensed limousines so teenagers aren't taken for a ride this prom season.

Part of the crackdown effort will be identifying unlicensed limos and for-hire vehicles that are operating during prom season.

Enforcement will include safety checks, which will be conducted by member's of Nassau's Consumer Affairs department, including the Taxi and Limousine Commission and state Department of Transportation inspectors.

"We urge parents to be proactive and to inquire where their child's limo is coming from," Curran said Friday outside Mineola High School. "Many vehicles come from out of state and may not pass a New York state safety inspection. Ask if the driver is licensed and insured, with a clean driving record."

The first-offense penalty for an unregistered vehicle is $1,500.

Anthony Ragusa, owner of White Star Limousine in New Hyde Park, says he welcomes the increased enforcement and that it's overdue. That enforcement comes after a Cutchogue limo crash in 2015 that killed four women and another limo tragedy upstate last fall that left 20 people dead.

In Nassau, a limo with an "N" and a "C" on its license plate signals that it's authorized by the Taxi and Limousine Commission. Another sign of a registered limo is its registration and inspection stickers on the windshield.

Officials say police will also be cracking down on underage drinking, drunk and distracted driving and any adults who violate the Social Host Law by giving alcohol to anyone under age 21.