Parties calling expert witnesses shall be required to state the subject matter on which the person is considered an expert and facts and opinions on which the expert witness will testify.
Okla. Admin. Code § 455:10-13-5
Parties calling expert witnesses shall be required to state the subject matter on which the person is considered an expert and facts and opinions on which the expert witness will testify.
Okla. Admin. Code § 455:10-13-5