QUEENS, N.Y. — When the Mets and Yankees made the initial announcement that they planned to offer two different types of seating, based on a person’s vaccination status, it was unclear how they would be able to implement their proposal.

On Monday, however, the Mets began to implement their plan for the first time.

They now offer tickets for either “Fully Vaccinated” sections of seating or “Socially Distanced Seating” for anyone else.

Guests 16 and older who would like to sit in a “Fully Vaccinated” section must present a CDC-issued COVID-19 vaccination card showing fully-vaccinated status and an ID matching the name on the COVID-19 vaccination documentation.

There are different requirements and rules for fans 15 and younger.

The differences for ticket holders now begin at the gate.

There are now designated entrances for fans based on what kind of a section they will sit in.

NY1 spoke to several fans who chose to sit in the new “fully vaccinated” sections.

“We’re vaccinated. So, why not go to a vaccinated section?" said Mets Fan Rene Gagnon who came with his friend from work.

“It’s a relief that the kids can get out and be normal kids and enjoy their time without sitting with the masks the whole time,” said Mets fan Claire Sereu, who came to the game with her husband and two young boys.

Those sitting in a fully vaccinated section must now enter at the bullpen gate and get a special wrist band upon entry.

Those in fully vaccinated sections can sit side by side in a group of up to six people and without having to wear masks when they are seated.

Fans who chose “Socially Distanced Seating” can enter at any other gate and no longer have to provide proof of a negative COVID-19 test upon entry.

NY1 asked fans sitting in “Socially Distanced Seating” whether they would consider vaccination so that they could enjoy “Fully Vaccinated” seating privileges.

“Doesn’t matter what section I’m in honestly. Coming to the game is good enough,” said Kevin Krause’s, a Mets fan who is still unvaccinated.

While inside the stadium, everyone is required to wear a mask while walking around the concourse and even at the concession stands.

Guests will also spot a few other differences around Citi Field including new sanitizing stations which can be found throughout the park.

Meantime, several other local sports teams are already going a step further announcing plans to welcome fans back at full capacity.

On Monday, the Giants and Jets released a joint statement regarding stadium capacity at MetLife Stadium for the 2021 season.

"We are thrilled by Governor Murphy's announcement today to have MetLife Stadium operate at full capacity for the 2021 season. We can't wait to welcome our fans back, creating the game day atmosphere we have all been missing. We will continue to work to ensure the return of fans is accomplished in a safe and responsible way," said the statement.