Okla. Stat. tit. 3, § 3-253

The following aircraft are exempt from provisions of Section 251

et seq. of this title:

1. Aircraft manufactured under a Federal Aviation

Administration approved type certificate which are owned and in the

physical possession of the manufacturers as provided in subsection D

of Section 254 of this title;

2. Aircraft owned by charitable organizations and used solely

for the furtherance of charitable purposes;

3. Aircraft belonging to nonresidents of this state and

registered in another state;

4. Aircraft of the federal government, any agency thereof, any

territory or possession thereof, any state government or agency or

political subdivision thereof, any aircraft of the Civil Air Patrol

used solely in transaction of official business by a unit of the

Civil Air Patrol;

Oklahoma Statutes - Title 3. Aircraft and Airports Page 87

5. Aircraft licensed by a foreign country with which the United

States has a reciprocal agreement covering the operation of such

licensed aircraft; and

6. Aircraft not currently licensed or holding a current

airworthiness certificate by the Federal Aviation Administration.