Congestion pricing becomes a part of visiting the busiest part of New York City Sunday after months of debate and legal challenges.

Saturday night marked the last time drivers entered below 60th Street without paying a $9 congestion fee.

The federal Third Circuit court rejected New Jersey’s appeal for a temporary restraining order on Saturday, ensuring that the program launched on Sunday.

The order was first denied on Friday in a Newark court.

Opinions have been mixed from the beginning. Some say they have no choice but to drive through the city - now at a higher premium.

“I'm really upset about this congestion pricing for our school teachers, our principals, our parents,” said retired New York school principal Jennifer Boone. “This is money out of their pockets.”

“If you have to drive because your job makes you drive, that is a legitimate business expense you should take up with your employer,” said MTA CEO Janno Lieber.

New Jersey-based climate and public transit activists say the tolls are the way forward to improving city access.

“Other places have done this around the world,” said Justin Balik, who represents New Jersey for Evergreen Action. “It is proven, it is tested. It's ready to go.”

“In just a short time after it starts, we will see cleaner air, less traffic and bus and subway improvements, resulting in a better commute for everyone,” said transportation and climate policy analyst Alex Ambrose.

Meanwhile, public transit costs have risen. New Jersey Transit upped its rates six months ago and PATH rides go up in a week.

The Port Authority’s bridges and tunnels also increased their tolls Sunday.