Unfortunately ESAs do not have public access rights, and that includes national parks. Only service dogs would be able to visit areas of national parks that are off limits to dogs.

Chiropractors are not an appropriate source for ESA letters. While chiropractors are licensed to provide health services, they are not similar to the other types of health professionals listed by HUD. Chiropractors specialize in diagnosing and treating musculoskeletal disorders. You will want to seek out a licensed mental health professional instead. You can read more about why chiropractors are not a good choice for ESA letters at this link: https://esadoctors.com/can-a-chiropractor-write-an-esa-letter/

You do NOT need a special license for an emotional support animal. The only way to qualify for an ESA is by obtaining an ESA letter. Please see this link for more information: https://www.servicedogcertifications.org/how-to-get-an-emotional-support-dog-letter/

We’re not aware of any rules that mandate ESAs be neutered.

You do not need to register an ESA. You should submit your ESA letter to your housing provider and request accommodation for your emotional support animal.