Transverse Mercator map, central meridian 30Â°W. This projection is not intended for small-scale or whole world maps, as the scale and areal distortion is obvious even moderately far from the central meridian.
Unmarried biological, step-children and adopted children are eligible for TRICARE until age 21 (or 23 if in college, see College Students below). Eligibility may extend beyond these age limits if he or she is severely disabled.
Children of military sponsors may also be covered under TRICARE till the age of 23, if they are still in school or an institute of higher learning on a full-time basis. It also needs to be proven that the child in question is at least partially (50%) responsible on his or her parents.