The following words or terms, when used in this subchapter shall have the following meaning, unless the context clearly indicates otherwise:
"Dual licensee" means a person licensed as a Professional Engineer and Professional Land Surveyor.
"PDH" means a professional development hour of at least 50 minutes of instruction, as defined in this subchapter.
"Professional development hour" means a contact hour (nominal) of instruction or presentation; the common denominator for other units of credit.
"College Semester / Quarter Hour" means credit for course in an EAC/ETAC-ABET approved program, or engineering or surveying college program approved by the Board.
Okla. Admin. Code § 245:15-11-1