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.
At age 10, the sponsor must obtain an ID card for the child. Children under age 10 should have an ID card of their own when in the custody of a parent or guardian who is not eligible for TRICARE benefits or who is not the custodial parent after a divorce. If both parents are active duty service members, then either may be listed as the child's sponsor in DEERS.