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USCG Master 100 ton License

A USCG Master 100 ton License issues the full authority of the OUPV license plus the additional
authority to operate any inspected vessel within the tonnage limitations of the license. Tonnage
limitations will apply and the license will be issued as Master 25 tons, Master 50 tons, or Master 100
ton depending on the size of the vessel the qualifying experience was on.

This license will be issued with either a limited scope waters route, inland route, or near coastal
route. The examination requirements are the same for both inland and near coastal routes, the sea
service requirements are different between the two routes.

A Master 100 ton limited scope waters license is issued by a specific USCG Marine Safety Office
(MSO) and is valid only on the inland waters which are under the authority of the issuing MSO. In
most cases this is the easiest license for someone to acquire.

A Master 100 ton Inland license is valid on all inland water of the United States, including all limited
scope waters routes within any MSO district.

A Master 100 ton near coastal license is valid on all inland waters and all near coastal ocean waters
out to 200 nautical miles from shore.

Oregon Charter Boat Operator

A USCG Master's License is required to operate any charter boat carrying more than six people for
hire on any inland or near coastal waters. To become an Oregon Charter Boat Operator you need
to register with the Oregon State Marine Board as a Charter Boat Operator. To register you will
need to supply the Oregon State Marine Board with a notarized copy of your US Coast Guard
(USCG) License, complete the application form, pay the annual fee, and provide evidence of
current First Aid and CPR Training, Liability Insurance, and a Surety Bond if you receive deposits
from customers in excess of $100.

Related Courses

80-hour Master 100 ton

Any applicant who has successfully completed your 80-hour Master 100 Tons course and presents
your Certificate of Training at a Regional Exam Center WITHIN ONE YEAR of the completion of
training, will satisfy the examination requirements of 46 CFR 10.205(i) for original issuance, 46 CFR
10. 209(c)(iii) for renewal, and 46 CFR 10.209(f) for reissuance of a license as Master of Steam or
Motor Vessels of Not More Than 100 Gross Tons (except oceans).

24-hour Upgrade OUPV to Master 100 ton

Any applicant who has successfully completed your 24-hour Upgrade OUPV to Master 100 Tons
course and presents your Certificate of Training at a Regional Exam Center WITHIN ONE YEAR of
the completion of training, will satisfy the examination requirements of 46 CFR 10.207 for upgrade
of a license from OUPV to Master 100 Tons Near Coastal.

16-hour OUPV/Master Limited Scope Waters (Portland MSO)

Any applicant who has successfully completed your 16 hour OUPV / Master Limited Scope Waters
course and who presents your Certificate of Training at the Regional Exam Center Sector Portland,
Oregon within one year of the completion of training, will satisfy the examination requirements of 46
CFR 10 205(i) for original issuance, 46 CFR 10 209(c)(m) for renewal, and 46 CFR 10 209(f) for
reissuance of a license as a Limited Master or Limited OUPV upon the following Limited Scope
route description:

“Upon all navigable, inland waters of the Marine Safety Office Sector Portland, Oregon zone of
responsibility except the Columbia River, the Willamette River downriver of the Oregon City Locks,
and the Snake River down river of Lower Granite Dam, Washington”

A completion certificate from your 24 hour Rules of the Road course used in conjunction with your
16 hour OUPV / Master Limited Scope Waters course by an applicant will remove the Columbia
River, Willamette River, and Snake River restrictions Applicants presenting proof of completion of
both of these courses will receive the following Limited Scope route description:

“Upon all navigable, inland waters of the Marine Safety Office Sector Portland, Oregon zone of
responsibility”

24-hour Rules of the Road

Any applicant who has successfully completed your 24-hour Rules of the Road course with a
passing grade of at least 90% and presenting your Certificate of Training at a Regional
Examination Center will EITHER satisfy the Rules of the Road Examination requirements for original
issuance or renewal of any deck license up to Master 200 GRT Master or Mate of Fishing Vessels,
and Apprentice Mate (Steersman); OR receive 7 days sea service credit towards any deck license
up to Master 200 GRT, Master or Mate of Fishing Vessels, Pilot (Mate). This sea service credit may
not exceed limits specified by law and may not be used to satisfy any recency requirements or
requirements for service on specific routes or types of vessels.

4-hour Auxiliary Sail

Any applicant who has successfully completed your 4-hour Auxiliary Sail course and presents your
Certificate of Training at a Regional Exam Center WITHIN ONE YEAR of the completion of training,
will satisfy the examination requirements of 46 CFR 10.482(b) for an Auxiliary Sail endorsement to
any license up to Master Not More Than 200 Gross Tons.

4-hour Assistance Towing

Any applicant who has successfully completed your 4-hour Assistance Towing course and presents
your Certificate of Training at a Regional Exam Center WITHIN ONE YEAR of the completion of
training, will satisfy the examination requirements of 46 CFR 10.482(b) for an Assistance Towing
endorsement to any license up to Master Not More Than 200 Gross Tons.
Oregon Charter Boat License

For information on how to
become an Oregon Charter
Boat Operator visit the
Oregon State Marine Board

Sea Service Requirements

The minimum sea service
experience requirements for an
Master 100 ton license with an
inland or limited scope route is
360 days, including 90 days of
sea service experience within
the past three years.

To qualify for a Master 100 ton
near coastal license requires
720 days, including 360 days on
near coastal ocean waters and
90 days within the past three
years.

Tonnage Limitations

A Master 100 ton license is
issued in 25 ton increments as
follows:

If all your qualifying experience
was on vessels of less than 5
gross tons you will receive a
Master 25 ton license.

If you have any sea service
experience on vessels over 5
gross tons you will receive a
Master 50 ton license.

USCG licenses from 50 to 200
tons are issued in 50 ton
increments, rounded up, based
on the following formula:

Either the maximum tonnage
that 25% of the qualifying
experience was on OR 150% of
the maximum tonnage that 50%
of the qualifying experience was
on.