; (2) by redesignating subsections (e) and (f) as subsections (f) and (g), respectively; (3) by inserting after subsection (d) the following new subsection (e): (e) (1) Under regulations prescribed by the Secretary of Defense, if the Secretary of a military department determines that the number of commissioned officers with cyberspace-related experience or advanced education in reserve active-status in an armed force under the jurisdiction of such Secretary is critically below the number needed, such Secretary may credit any person receiving an original appointment as a reserve commissioned officer with a period of constructive service for the following: (A) Special experience or training in a particular cyberspace-related field if such experience or training is directly related to the operational needs of the armed force concerned. (B) Any period of advanced education in a cyberspace-related field beyond the baccalaureate degree level if such advanced education is directly related to the operational needs of the armed force concerned. (2) Constructive service credited an officer under this subsection shall not exceed one year for each year of special experience, training, or advanced education, and not more than three years total constructive service may be credited. (3) Constructive service credited an officer under this subsection is in addition to any service credited that officer under subsection (a) and shall be credited at the time of the original appointment of the officer. (4) The authority to award constructive service credit under this subsection expires on December 31, 2023.