Okla. Stat. tit. 63, § 63-4030

A. 1. Service Oklahoma shall, and each federally recognized

Indian tribe of this state may, develop and implement a permanent

number system for vessels which is consistent with United States

Coast Guard statutes and regulations. The system shall be effective

upon the effective date of this act.

2. Except as otherwise provided by this section, every vessel

on the waters of this state shall display the permanent number

assigned to it by Service Oklahoma or by a federally recognized

Indian tribe of this state, which number shall not be obliterated,

erased, mutilated, removed or missing.

3. In order to ensure that:

a. a permanent number issued by a federally recognized

Indian tribe of this state conforms to federal

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statutory and regulatory requirements of the United

States Coast Guard, and

b. the rights prescribed in paragraph 2 of this

subsection are extended to every federally recognized

Indian tribe of this state,

every vessel on the waters of this state assigned a permanent number

by a federally recognized Indian tribe of this state which issues

permanent numbers shall be recorded and maintained by Service

Oklahoma in the same manner as Service Oklahoma records and

maintains the permanent number of vessels on the waters of this

state which are assigned by Service Oklahoma.

B. The vessels authorized to display a number other than that

required by the provisions of the Oklahoma Vessel and Motor

Registration Act are:

1. A documented vessel, provided that such vessel is currently

registered, is displaying both current registration decals, and the

name, hailing port and official federal documentation number

assigned to it are displayed on the vessel according to federal law

or federal rules and regulations;

2. A vessel from a country other than the United States

temporarily using the waters of this state;

3. A vessel from another state owned by an out-of-state

resident using the waters of this state;

4. A vessel whose owner is the United States, a state or a

subdivision thereof; provided, however, if such vessel is used for

recreational or rental purposes on the public waters of this state,

that vessel shall display the permanent number assigned to it by

Service Oklahoma;

5. A vessel that is used exclusively and solely for racing

purposes;

6. A vessel that is used exclusively and solely as a lifeboat;

and

7. A commercial flotation device which is assigned a permit by

the Scenic Rivers Commission pursuant to the provisions of Sections

1461 et seq. of Title 82 of the Oklahoma Statutes.

C. Except as otherwise provided for in this section, every

vessel and every outboard motor on the waters of this state shall

display the current registration decals or decal assigned to it by

Service Oklahoma. The outboard motor registration decal shall be

affixed to the upper portion of the motor cowling in such a manner

that approximately one-half (1/2) of the decal is displayed on the

left side of the motor cowling extending toward the rear of the

motor cowling. Vessel registration decals shall be:

1. Affixed on each side of the forward half of the vessel; and

2. In line with and within six (6) inches aft of the permanent

number.

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D. The owner of any vessel issued a permanent number pursuant

to the provisions of the Oklahoma Vessel and Motor Registration Act,

Section 4002 et seq. of this title, shall place on or attach to the

vessel the permanent number in such manner that it may be clearly

visible. The permanent number shall:

1. Be maintained in legible condition;

2. Be painted, applied as a decal, or otherwise affixed to each

side of the forward half of the vessel in contrasting color to the

background, as high above the waterline as is practical;

3. Read from left to right;

4. Be comprised of numbers and letters printed in block style
r in such manner that it may be clearly

visible. The permanent number shall:

1. Be maintained in legible condition;

2. Be painted, applied as a decal, or otherwise affixed to each

side of the forward half of the vessel in contrasting color to the

background, as high above the waterline as is practical;

3. Read from left to right;

4. Be comprised of numbers and letters printed in block style

of at least three (3) inches in height and one-half (1/2) inch in

stroke width; and

5. Have spaces or hyphens that are equal to the width of a

letter other than "I" or a number other than "1" between the letter

and number groupings.

No other similar numbers shall be displayed on either side of the

forward half of the vessel.

E. The provisions of this section shall not apply to sailboards

or fishing tubes.

F. Service Oklahoma shall adopt rules for the placement of the

registration decal in an alternate location for antique boats. In

this subsection, "antique boat" means a boat that:

1. Is used primarily for recreational purposes; and

2. Was manufactured before 1968.

Such rules shall allow vessels registered as antique boats to

display the registration decal on the left portion of the

windshield. In the absence of a windshield, the rules shall allow

operators of antique boats to attach the registration decal to the

certificate of registration and make such decal and certificate

available for inspection when the boat is operated on public water.