The manufacturer identification code (MIC) of your craft identification number (CIN or HIN) is JEM. This MIC (JEM) stands for the company name Madsen Pontoon Boat Co which is currently Out of Business. This boat manufacturer code has other company names (JEM 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 (Madsen Pontoon Boat Co) is owned by J E Madsen and is located at Hwy 10e Box 27 in Big Lake state of Mn. It manufactured this vessel and placed your HIN or CIN on the hull. This Boat maker is not owned by a parent company. Madsen Pontoon Boat Co has started making boats, yachts or other watercraft as of 3/23/1973 and went out of business on (2/23/1989) in the following country: USA.
More details at the US Coast Guard.
The US Coast guard provides this comment about this watercraft manufacturer: 2/89 Assets Bought By 'mbb' Madsen Boatworks.