The California Spousal or Domestic Partner Support Declaration Attachment, also known as Form FL-157, is a document used in California to document the agreement between spouses or domestic partners on the amount and duration of support payments. The form is required to be filed with the court when a couple is seeking a spousal or partner support order. It is also used to document any changes to an existing support order. There are two types of California Spousal or Domestic Partner Support Declaration Attachment: 1. The Short Form Declaration Attachment is used when both parties agree to the support payments and duration. 2. The Long Form Declaration Attachment is used when there is a dispute or disagreement between the parties and the court must decide on the amount and duration of the support payments.