More than 100 people lined up outside the NYC Animal Care Center's Manhattan adoption center on Saturday.

Another 100 potential adopters arrived at the ASPCA Adoption Center on the Upper East Side and dozens more converged on the Best Friends Pet Adoption Center in SoHo.

All three rescues joined hundreds of others nationwide to take part in this year's ‘Clear the Shelters’.

During the day-long initiative, organizations waive all adoption fees in the hopes of getting homeless animals into fur-ever homes.

"It's the time of year where we really need to find homes for our animals so lifting the adoption fee it’s just one last barrier that people have to go through," said Katy Hansen of NYC ACC.

“This is our 3rd year participating in 'Clear the Shelters' so we've adopted out a lot of animals. As you can see, it’s very busy here,” said Hannah Stember of the Best Friends Animal Society.

First in line at NYC ACC's 5th annual event, in Manhattan, was a couple from Pennsylvania who drove 7 hours to meet "Dutch" the dog.

"My town doesn't do this for the shelters," said Sarah Oaks, who arrived at 3:30 a.m. to get the first spot in line.

At all three shelters, those who came looking for new pet arrived bubbling with enthusiasm and excited to take home a new four legged friend.

"I’m in love. She's adorable," said Brooklyn resident Maria Cacho.

After an introduction between owner and pet and a little one on one time, potential adopters go through a screening process and counseling before the official adoption can be completed.

"It's really a win win for everyone," said Upper East Side resident Omar Farah.

The entire adoption process takes place during the span of the day but things can move quickly.

At NYC ACC's location in East Harlem, they completed 4 adoptions in just the 1st hour they were open.

In that time 2 large dogs, 2 cats and a smaller pup all went home with new owners.

Adoptions in numbers:

NYCACC (all 3 adoption centers combined ) = 131 adoptions 

ASPCA = 80 adoptions 

Best Friends Animal Society = 27 adoptions 

The work of these shelters, however, is never done.

Officials said that the event’s adoptions help them twofold: by getting an animal in need into a new home while also creating room for another animal in need.