In addition to the other requirements for licensure to practice osteopathic medicine, an applicant shall cause to be submitted to the Board:
1. A certificate of completion of progressive postgraduate training from the residency program where the applicant received training; and
2. If applicable, proof of satisfactory completion of a postgraduate training program specified in subparagraph (3) of paragraph (c) of subsection 1 of NRS 633.311 within 120 days after the scheduled completion of the program.