To be eligible for a service dog in Illinois, the handler must have a qualifying physical or mental health disability. This page provides resources for those seeking information on service animals.A service animal must be permitted to accompany a person with a disability in areas subject to the ADA, such as businesses that are open to the public. In Illinois, there's no rule requiring service dog registration. But many handlers opt to register their dogs in voluntary databases to get ID cards. Illinois and federal law protect the right to have service dogs in public places and may cover other service animals in housing. Are you curious about emotional support animal laws in Illinois? We cover everything you need to know including service animal laws. The process of getting a psychiatric service dog in Illinois starts with obtaining a PSD letter from a Licensed Mental Health Professional (LMHP). Who is Eligible to Apply?