Wellington SPCA volunteer programme co-ordinator Holly Stephens said the Emergency Reserve was the first of its kind in New Zealand.
It would benefit the Wairarapa region in a number of ways, she said.
"The reservists will be integral to the local inspectorate and will support our inspectors by responding to animal emergencies after hours.
"This will help to reduce inspector fatigue and ensure that our inspectors are capable of continuing their valuable work within the community."
In a Civil Defence emergency, such as flooding or an earthquake, volunteers will establish pet-friendly shelters and help to evacuate and transport animals.
Ms Stephens said the establishment of the group would also present more volunteer opportunities for the community.
People would receive training opportunities while helping animals in need, she said.
"The reserve provides an excellent pathway for volunteers to gain experience working as part of the wider inspectorate if they are considering a career as an SPCA inspector or with local animal management services.
"This is also an excellent opportunity for aspiring veterinary professionals and students to gain trauma experience."
Ms Stephens said the role would be both challenging and rewarding.
She said volunteers will not be expected to perform hazardous or high-risk rescues, which instead would be referred to the SPCA's Animal Rescue Unit.
They will also not be expected to respond to callouts after 10pm unless other emergency services or security were at the scene.
Wellington SPCA is seeking Wairarapa people to join the team. Applicants will need to take a selection assessment involving a swim test and a manual handling test.
Training for the role includes modules such as animal welfare, animal disaster management, pet first aid, bird handling and transportation of injured animals.
The initial training for reservists is completed over two weekends, with further opportunities offered for training and certifications in various emergency situations.
Reservists will be placed on a weekly roster to provide the after-hours service.
Contact the Wellington SPCA volunteer team at volunteer@wellingtonspca.org.nz for more information.