Marines are weighed, at least semi-annually (annually for Reserves) and are enrolled in the Body Composition Program - formerly known as the "Weight Control Program." If the Marine is over the weight on the chart, but meets the body-fat standard, they are considered to be within the required standards, and no further action is taken. The Marine is weighed, and the weight compared to the below chart. Only if the Marine exceeds the allowable weight on the chart, they are measured for body-fat.
Body Fat Standards for Marines are:
Male - Not to exceed 18 percent. Females - Not to exceed 26 percent.
Note: If the Marine Scores a First Class on the Fitness Test, the body fat standards are:
Male - Not to exceed 22 percent Females - Not to exceed 30 percent
If the Marine fails to lose the required weight/body fat while enrolled in the Body Composition Program, they can ultimately be discharged from the United States Marine Corps.
This article should help many with finding the standards you should reach prior to joining the military. It is always recommended to never strive for the minimum physical standards when seeking a profession that requires a fit body to perhaps save your life or the lives of your comrades. If you are seeking to get back into shape and want to be as fit as one of the above military members, check with your doctor before starting any fitness program.
For more advanced standards see RECON Article