Sec.  80.273   Technical requirements for radar equipment.

   (a) Radar installations on board ships that are required by the Safety
   Convention or the U.S. Coast Guard to be equipped with radar must comply
   with either the document referenced in paragraph (a)(1) of this section or
   the applicable document referenced in paragraphs (a)(2) through (4) of this
   section. These documents contain specifications, standards and general
   requirements applicable to shipboard radar equipment and shipboard radar
   installations. For purposes of this part the specifications, standards and
   general requirements stated in these documents are mandatory irrespective of
   discretionary language. The standards listed in paragraphs (a)(1), (2), (3),
   and (4) of this section are incorporated by reference. The Director of the
   Federal Register approves this incorporation by reference in accordance with
   5 U.S.C. 552(a) and 1 CFR Part 51. Copies of these standards can be
   inspected at the Federal Communications Commission, 445 12th Street, SW.,
   Washington, DC (Reference Information Center) or at the National Archives
   and Records Administration (NARA). For information on the availability of
   this material at NARA, call 202–741–6030, or go to:
   http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_loc
   ations.html. The standards referenced in paragraphs (a)(1), (2), and (3) of
   this section can be purchased from the Radio Technical Commission for
   Maritime Services (RTCM), Suite 600, 1800 Diagonal Road, Alexandria,
   Virginia 22314–2480; telephone 703–684–4481; fax 703–684–4229; email
   wtadams@rtcm.org. The standard referenced in section (a)(4) can be purchased
   from International Maritime Organization (IMO), Publications, 4 Albert
   Embankment, London SE1 7 SR, United Kingdom; telephone 011 44 71 735 7611.

   (1) Radar installed on or after July 1, 1988, on ships of 500 gross tons and
   upwards that were constructed on or after September 1, 1984, must comply
   with the provisions of RTCM Paper 133–87–SC 103–33 including Appendix A.
   Title: “RTCM Recommended Performance Specification for a General Purpose
   Navigational Radar Set for Oceangoing Ships of 500 Gross Tons and Upwards
   for New Radar Installations.” Title of Appendix A: “General Purpose
   Shipborne Navigational Radar Set for Oceangoing Ships Design and Testing
   Specifications.” Document originally approved by RTCM August 15, 1985 and
   revised May 15, 1987.

   (2) Radar installed on ships of 1,600 gross tons and upwards on or before
   April 27, 1981, must comply with the provisions of Volume II of RTCM Special
   Committee No. 65 Final Report; Part II. Title: “Performance Specification
   for a General Purpose Navigational Radar Set for Oceangoing Ships of 1,600
   Tons Gross Tonnage and Upwards for Ships Already Fitted.” Document approved
   by RTCM July 18, 1978; effective as FCC requirement on April 27, 1981.

   (3) Radar installed on ships of 1,600 gross tons and upwards after April 27,
   1981 and before July 1, 1988, must comply with the provisions of Volume II
   of RTCM Special Committee No. 65 Final Report with Change 1 entered; Part I
   including Appendix A. Title: “Performance Specification for a General
   Purpose Navigational Radar Set for Oceangoing Ships of 1,600 Tons Gross
   Tonnage and Upwards for New Radar Installations.” Title of Appendix A:
   “General Purpose Shipborne Navigational Radar Set for Oceangoing Ships
   Design and Testing Specifications.” Document approved by RTCM July 18, 1978;
   effective as FCC requirement on April 27, 1981.

   (4) Ships between 500 and 1,600 gross tons constructed on or after September
   1, 1984, with radar installed before July 1, 1988, must comply with
   Regulation 12, Chapter V of the Safety Convention and with the provisions of
   Inter-Governmental Maritime Consultative Organization (IMCO) [now
   International Maritime Organization] Resolution A.477 (XII). Title:
   “Performance Standards for Radar Equipment,” with Annex. Adopted by IMCO
   November 19, 1981.

   (b) For ships of 10,000 gross tons or more and any other ship that is
   required to be equipped with two radar systems, each of these systems must
   be capable of operating independently and must comply with the
   specifications, standards and general requirements established by paragraph
   (a) of this section. One of the systems must provide a display with an
   effective diameter of not less than 340 millimeters (13.4 inches), (16 inch
   cathode ray tube). The other system must provide a display with an effective
   diameter of not less than 250 millimeters (9.8 inches), (12 inch cathode ray
   tube).

   (c) Recommendations for tools, test equipment, spares and technical manuals
   are contained in Part IV of Volume III of the RTCM SC–65 Final Report
   approved by RTCM July 18, 1978.

   [ 68 FR 46967 , Aug. 7, 2003]