State Register Plaques Sample plaques for properties that are individually listed (left) or included in a historic district listed (right) in the State Register The Rhode Island Historical Preservation & Heritage Commission (RIHPHC) has a plaque program to recognize properties listed in the State Register. If you own a property listed on the State or National Register of Historic Places, you may purchase a plaque to display. Prior to ordering a plaque, property owners must confirm with RIHPHC that the property is listed in the State Register. Visit our State Register page to consult the working list of registered properties. Then fill out the Rhode Island State Register Request form below and submit a copy to RIHPHC via email or fax: 401-222-2968. If you wish to speak with RIHPHC staff, call 401-222-4138 and leave a voicemail message. RI State Register Request Form 210610hp_risr-form-v3.pdf PDF file, less than 1mbmegabytes If your property is listed, RIHPHC will send you a RI State Register certificate and an order form. Include a copy of the RI State Register certificate along with your order form to purchase a plaque directly from the manufacturer, Healy Plaques in Manville, Rhode Island. Each 4.25" x 7.25" plaque is made of cast aluminum with a black painted background, finished with a protective polyurethane coating. The plaque is pre-drilled for easy installation and comes with 2 painted wood screws. The total cost per plaque is $151.60 ($123.00 + $8.61 RI Sales Tax + $19.99 Shipping). For more information about the State Register plaques, call 401-222-4138 or email.