§ 189. Grade of permanent commissioned teaching staff
Professors shall be commissioned officers with grade not above captain, associate and assistant professors with grade not above commander, and instructors with grade not above lieutenant commander. All officers of the permanent commissioned teaching staff shall receive the pay and allowances of other commissioned officers of the same grade and length of service. When any such professor, associate professor, assistant professor, or instructor is appointed or commissioned with grade less than the highest grade permitted, he shall be promoted under regulations prescribed by the Secretary.