The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is HAU. This MIC (HAU) stands for the company name Haupert Auto & Boat which is currently Out of Business. This boat manufacturer code has other company names (HAU sometimes goes by these name(s) if applicable: , , , or ). This could happen if the US Coast Guard reissued the MIC to a new company after the first went out of business.
This company (Haupert Auto & Boat) is owned by and is located at 433 W Main Box 68 in Ottumwa state of Ia. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. Haupert Auto & Boat has started making boats, yachts or other watercraft as of and went out of business on (4/19/1977) in the following country: USA.
More details at the US Coast Guard.