Texas Cancellation of HMO Certificate of Authority is a document issued by the Texas Department of Insurance (TDI) that terminates the Certificate of Authority of a health maintenance organization (HMO) in the state of Texas. The cancellation of the HMO Certificate of Authority is required when a HMO decides to no longer offer or provide health care services in Texas. The Texas Cancellation of HMO Certificate of Authority process includes the submission of a formal request to the TDI, along with supporting documents such as financial statements, legal documents, and documents related to the HMO's operational activities. There are two types of Texas Cancellation of HMO Certificate of Authority: voluntary and involuntary. Voluntary cancellation is initiated by the HMO itself, while involuntary cancellation is initiated by the TDI due to non-compliance with regulations or other legal requirements. Both types of cancellation require the submission of the appropriate documents to the TDI.