Since 2008, Girl Scouts of the USA have had five age levels: Daisy, Brownie, Junior, Cadette, and Senior. In 2011 they added the new sixth level of Ambassadors. Girl Scouts move or "bridge" to the next level, usually at the end of the school year they reach the age of advancing. They are considered in the appropriate level based on their grade on October 1, the start of each new Girl Scout year. There are exceptions for "special needs" but Girl Scouts who are "young in grade" have not been specifically considered. Each year of membership in Girl Scouting is represented on the uniform by a small, golden, six-pointed membership star (one per year) with colored background discs which represent a level. Girl Scouts used to wear similar uniforms to other groups in WAGGGS. Now a white shirt and khaki bottom is accepted for all levels.