The South Dakota Statement of Change of Registered Office or Registered Agent or Both is a form filed with the South Dakota Secretary of State’s office to update the registered office or registered agent of an entity registered in South Dakota. The form must be signed by the registered agent or an authorized representative of the entity. There are two types of South Dakota Statement of Change of Registered Office or Registered Agent or Both: 1. South Dakota Statement of Change of Registered Office: This form is used to update the address of the registered office of an entity registered in South Dakota. 2. South Dakota Statement of Change of Registered Agent: This form is used to update the name and/or address of the registered agent of an entity registered in South Dakota.