Thanks for your interest in PetRescue. PetRescue is an umbrella group, providing services to over 650 different animal rescue groups nationwide. We occasionally have volunteer positions come up which we advertise on our Facebook page.
If you're interested in doing something more 'hands on' with animals, you may wish to contact some of our rescue group members who may have volunteer opportunities. A directory of rescue groups can be found here and you can search by state to narrow down the results.
Good luck, and thanks again for wanting to get involved!