Section 229-600-3 - Minimum Specifications and Manner of Operation of Radar Devices on Passenger Vessels in Casco BayA. Any person, firm, or corporation, engaged in the transport of six or more passengers by vessel, for compensation between or among the islands of Casco Bay and the Mainland, shall equip each vessel so used with a radar device having the following minimum specifications: 1. Maximum range shall be at least 12 nautical miles;2. Minimum range shall be no greater than 25 yards;3. Range scales: The minimum range scale shall be 1/14 nautical mile: The maximum range scale shall be 12 nautical miles, with intermediate range scales.4. The set shall have a variable range marker;5. Bearing accuracy shall be plus or minus one degree using cursor;6. The instrument shall present a picture no less than six inches in diameter;7. The antenna system shall have an aperture no less than 20 inches in diameter;8. The specifications and costs of a selected radar device may be submitted to the Department for prespective approval;9. Radar devices shall be installed subject to the applicable requirements of the manufacturers specifications, and the United States Coast Guard.B. When any vessel required to be equipped with radar pursuant to Section 3 is engaged in the transport of passengers, the captain shall be the radar observer. The captain shall be qualified as a radar observer by possessing a certification from the United States Coast Guard, or possessing a certificate of successful completion of a course of instruction from any "Radar Observer School" approved by the United States Coast Guard to issue such a certificate.17-229 C.M.R. ch. 600, § 3