Do we have to be a 501c3 to sign up

No. We don't require 501c3 non-profit status to sign up for a shelter/rescue account. However, you must:

• be a legitimate rescue organization and not engaging in activities counter-productive to the cause of animal rescue such as breeding pets, encouraging the public to breed pets, or selling pets for profit
• be in possession of any local or state-required permits necessary for your operations
• not have any pending or confirmed animal control or criminal citations or violations

We have other requirements too! You can read our rules for using our service at 

http://www.adoptapet.com/shelter/terms_conditions_signup.html