Indicates whether or not a family are a same-sex couple family. When information about same-sex couples is volunteered in the relationship question (Question 5 on the paper Census Household form), it is used in family coding and the person is classified as a partner in a de facto marriage for the Relationship in Household person classification.
See also Relationship as Reported for Couples (RLCP), Relationship in Household (RLHP).