Beginning today, anyone who refuses to wear a mask on public transport could face a fine in New York City.

The MTA says people riding public transit without a face covering could result in a fine of $50.

The new rule affects anyone on the subway, buses, Metro-North and the Long Island Rail Road. The MTA says the fine will be used as a last resort.

Enforcement officers will first ask a rider to cover their face and even get them a mask if they don't have one. Not wanting to put one on is not going to be tolerated.

The NYPD, MTA police and bridge and tunnel officials will be the ones enforcing the new rule.

According to a survey by the MTA, more than 90% of customers are already covering their face, but they want to make sure that number is at 100%.

The agency launched a public awareness campaign called “Operation Respect” to encourage mask wearing.

The MTA says 4 million masks are now available at stations and free for anyone who may need one. There are also 360 buses that have mask dispensers on board.