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Marine Safety Center Tonnage Publications

Marine Safety Center Technical Notes (MTNs)


  • MTN 01-99 CH-7 - Tonnage Technical Policy
  • MTN 01-98 CH-12 - Tonnage Administrative Policy
  • MTN 04-03 CH-2 - Technical Support and Oversight of Authorized Classification Societies
  • MTN 04-03 CH-2 Enclosure (1) - Tonnage Notification Template
  • Navigation and Vessel Inspection Circulars (NVICs)


  • NVIC 11-93 CH-3- Applicability of Tonnage Measurement Systems to U.S. Flag Vessels
  • IMO Tonnage Rules and Interpretations (TM Convention)


  • TM Convention - Draft Text Version (With Figures)
  • TM.5/Circ.6
  • Marine Safety Center Tonnage Guides


  • Tonnage Guide 1 - Simplified Measurement
  • Tonnage Guide 2 - Measurement of Navy and Coast Guard Vessels
  • Tonnage Guide 3 - Tonnage Measurement Records
  • Tonnage Guide 4 - Registered Dimensions Under Formal Systems
  • Miscellaneous Tonnage Documents


  • Formal Measurement Application
  • Historical Marine Safety Center Technical Notes (MTNs)


  • MTN 01-99 CH-6
  • MTN 01-99 CH-5
  • MTN 01-99 CH-4
  • MTN 01-99 CH-3
  • MTN 01-99 CH-2
  • MTN 01-99 CH-1
  • MTN 01-99
  • MTN 01-98 CH-11
  • MTN 01-98 CH-10
  • MTN 01-98 CH-9
  • MTN 01-98 CH-8
  • MTN 01-98 CH-7
  • MTN 01-98 CH-6
  • MTN 01-98 CH-5
  • MTN 01-98 CH-4
  • MTN 01-98 CH-3
  • MTN 01-98 CH-2
  • MTN 01-98 CH-1
  • MTN 01-98 CH-0





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