The Tennessee MIR Medical Waiver and Consent Form is a document from the Tennessee Department of Mental Health and Substance Abuse Services (MESAS) that is used to grant permission for healthcare providers to exchange information regarding a patient's medical records, treatment, and other pertinent information. The form is used to ensure that a patient's medical information is kept private and secure. There are two types of Tennessee MIR Medical Waiver and Consent Form: the Authorization to Release Medical Information and the Authorization to Exchange Medical Information. The Authorization to Release Medical Information allows a healthcare provider to release medical information to other healthcare providers, while the Authorization to Exchange Medical Information allows a healthcare provider to exchange medical information with other healthcare providers. Both forms require the patient's signature and a witness's signature in order to be valid and are typically used when a patient is receiving treatment or care from multiple healthcare providers.