Guardia Costera (Coast se reserva incluyendo la Guardia): La Guardia Costera requiere un mínimo de 40 puntos en la AFQT. Una renuncia es posible para los solicitantes con los servicios anteriores si sus puntuaciones de línea ASVAB (que se calculan a partir de las distintas subpruebas ASVAB) a calificar para un trabajo específico y que están dispuestos a dar de alta en ese trabajo. Para las pocas personas (menos del 5 por ciento) que se les permite dar de alta con un GED, la puntuación mínima es de 50 AFQT.
The ASVAB is routinely reviewed to eliminate any potential biases from questions and scoring. The exam underwent a major revision in 2002. Two years later, a renormalization of the percentile scoring system was performed to ensure that a 50 percent score represented performing better than 50 percent of all test takers. The 10-section ASVAB improves the matching of volunteers with available jobs and helps match job openings with qualified individuals.
After a candidate has completed the ASVAB they must wait one calendar month before retaking the exam. An additional calendar month must pass before retesting a second time. Six calendar months must pass before retaking the test a third time. The scores received from the ASVAB may be used for enlistment for up to two years from the initial test date. 
The various armed forces adopted all of those aspects in 1976. At that point in time, the test was in its written form rather than today’s more common form (computerized test format). The written form covers all of the previously mentioned areas as well, which is why both forms are still available. All-in-all that answers the question concerning the intention of the test.