Master / Mate 100 tons and less

An endorsement as Master 100 tons or less is required
to operate inspected vessels carrying more than six
passengers for hire. This is the most common
endorsement held by charter boat captains and the
captains of small crew boats, supply boats, oil spill
recovery vessels and small passenger vessels. This
endorsement is issued with tonnage limitations of 25,
50 or 100 depending on the qualifying experience of
the applicant. They are issued issued with either an
inland, near coastal or oceans route.

Master authorizes the mariner to serve as captain or
mate on any inspected vessel within the limitations on
the endorsement or as Operator of Uninspected
Passenger Vessel (OUPV).

Mate authorizes the mariner to serve as second
captain on any inspected vessel within the limitations
on the endorsement or as OUPV. A mate or second
captain is required on vessels operating more than
twelve hours a day.

An Inland Route includes all inland waters of the US.
  • A Master 100 ton or less with an inland route
    requires 360 days of qualifying sea service
    experience on the deck of power-driven vessels.
  • A Mate 100 ton or less with an inland route
    requires 180 days of qualifying experience on the
    deck of power-driven vessels.

A Near Coastal Route includes all inland waters of the
US and all ocean waters within 200 miles of the US
coastline.
  • A Master 100 ton or less with a near coastal route
    requires 720 days of qualifying sea service
    experience on the deck of power-driven vessels;
    at least 360 days of the qualifying experience
    must have been on ocean waters.
  • A Mate 100 tons or less with a near coastal route
    requires 360 days of qualifying sea service
    experience on the deck of power-driven vessels;
    at least 180 days of the qualifying experience
    must have been on ocean waters.

An Ocean Route includes all inland waters of the US
and all ocean waters.
Columbia Pacific Maritime LLC
Call (503) 841-6066 for more information or to schedule a class.

(c) Dennis A. Degner 2006-2011
Tonnage Limitations

Tonnage limitations on Master or Mate endorsements of
100 tons or less are based on the size of vessels that
applicants qualifying experience was on.
  • A 25 ton limitation will be issued if all the
    qualifying experience was on state registered
    vessels of less than 5 gross tons (GRT).
  • A 50 ton limitation will be issued if any of the
    qualifying experience was on documented vessels
    of greater than 5 gross tons.
  • A 100 ton limitation will be issued if either 50% or
    more of the qualifying experience was on
    documented vessels greater than 34 gross tons
    or at least 25% of the qualifying experience was
    on documented vessels of greater than 50 gross
    tons.

Upgrade Information

Upgrading from Mate to Master or increasing the
tonnage limitation to 100 tons can be accomplished by
sea service experience alone, no additional exams or
training is required.

Courses

Other courses that may be of interest.