Rental Dwelling Unit Registration Form and Instructions in the United States of America1942-01-01unknownhttp://rightsstatements.org/vocab/NKC/1.0/enghttp://congressarchives.org/record/CAC_CC_047_1_3_60_0005This form, Form DD 4-D, is used for the registration of rental dwellings in the United States. Landlords must register each rental dwelling unit separately, whether occupied or vacant. The form should be completed in triplicate and submitted to the Area Rent Office. Tenants must also sign the form and indicate if the equipment and services included in the rent are accurate. The Maximum Legal Rent for each dwelling unit is determined based on specific criteria outlined in the form. Providing false information on the form or evading rent regulations can result in fines or imprisonment.