With congestion pricing now in effect in NYC, officials are cracking down on obscured license plates, or "ghost plates," to avoid the toll.

The toll, known as congestion pricing, is meant to reduce traffic gridlock in densely packed Manhattan while also raising money to help fix the city’s ailing public transit infrastructure. It formally took effect Sunday.

Congestion pricing is kicking in in midtown and lower Manhattan: When does it start? How much will I pay? How can I get to New Jersey or Queens without paying? Will taxis and Ubers cost more?

The crackdown could include a $50 fine for parked cars with obstructed plates, in addition to penalties for those caught driving through toll areas undetected.

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Getting into New York City from New Jersey, Pennsylvania, or Delaware by car will mean paying the new congestion fee. The Congestion Relief Zone covers all of Manhattan below 60th Street — think Midtown, Lower Manhattan, and the neighborhoods where most of NYC’s iconic attractions are located.

One day after New York City completed its first full weekday of the new congestion pricing tolling program, police are cracking down on motorists trying to bypass the system. Assisting the MTA, the NYPD stopped several drivers who tried to cover up parts of their license plates to avoid being charged as they entered the congestion zone.