Final answer:
Midshipmen who decline a commissioned officer appointment can be transferred to the reserve component for up to 6 years.
Step-by-step explanation:
The question pertains to the regulations surrounding midshipmen who complete their education at the Naval Academy but decide against accepting a commission as officers. Based on my knowledge and the information available, there is no specific regulation quoted in the references provided that details how many years a midshipman may be transferred to the reserve component in an enlisted status and ordered to active duty if they decline to accept an appointment as a commissioned officer. Such a situation would be governed by policies and contracts entered into by the midshipmen at the time of their enrollment at the Naval Academy, as well as relevant laws and regulations. As the information provided does not contain certain details about these policies, it is not possible to give a definitive answer to this question.
Typically, individuals who receive an education at a service academy and choose not to fulfill their commitment as a commissioned officer may be required to reimburse the government for their education or serve for a certain number of years in an enlisted capacity. The specifics are determined by the service's needs, current policy, and the contractual agreement with the individual.
Midshipmen who complete the course of instruction in the Navel Academy and decline to accept an appointment as a commissioned officer may be transferred to the reserve component in an enlisted status and order to active duty for up to 6 years.