Each service has a uniformed head who is considered the highest-ranking officer within their respective service, with the exception of the chairman and vice chairman of the Joint Chiefs of Staff, and the chief of the National Guard Bureau. They are responsible for ensuring personnel readiness, policy, planning and training and equipping their respective military services for the combatant commanders to utilize. They also serve as senior military advisors to the President, the Secretary of Defense, their respective service secretaries, as well as other councils they may be called to serve on. They are as follows:
Military Sealift Command and the Maritime Administration’s sealift fleets are in even worse shape. Combined, they furnish 61 cargo ships. Yet, even that small number is misleadingly high. Twenty-six of those ships run on steam — to call them outdated would be a compliment. We’re also keeping that 61-ship number artificially high by allowing ships to operate for 50 and even 60 years, long past their life expectancy. These older ships require more maintenance and risk major breakdowns.
After the final ability estimate is computed, it is converted to a standard score on the ASVAB score scale that has been statistically linked to the ability estimate through a process called equating. Equating studies are conducted for every paper and pencil ASVAB form to ensure that scores have the same meaning regardless of which test form the examinee receives.