A 12-week-old border collie is due to begin training as an urban search and rescue dog with the Essex Fire Service Search and Rescue team.
Darcy, whose handler is John Ball, a firefighter from Brentwood, will have to undergo 18 months of training.
She will then be able to help find casualties of disasters and accidents.
Terry Povey from the Essex Fire Service team said Darcy would make a real difference to their work and would actually help save lives.
He said: "Within Essex we didn't have our own rescue dog, and it's search dogs that time and time again save lives.
"If you've got a good, trained search dog, what takes us hours they can do in minutes, and they really do save lives."