The Alaska Three-Way Affidavit to Disestablish and Establish Paternity, SHC-151, is a form used to legally establish paternity in Alaska. It can also be used to disestablish paternity if the alleged father is not the biological father. This form is used by a court, the Division of Child Support Services, and the Alaska Department of Health and Human Services. It is completed by the mother, the alleged father, and the biological father if known. This form must be signed by all three parties and notarized. Types of Alaska Three-Way Affidavit to Disestablish and Establish Paternity, SHC-151, include the original form, the amended form, and the written order form. The original form is used when the parties are establishing paternity for the first time. The amended form is used when the parties are disestablishing paternity or changing an existing paternity order. The written order form is used when a court is entering an order regarding paternity.