<P> In 2004 , high - visibility yellow `` optic '' covering , long - used for restricted flight balls in co-ed recreational leagues , became standard for competitive play . Yellow is the color of official NCAA and NAIA softballs . Yellow softballs are fast becoming the standard for all levels of play for girls ' and women 's play in particular . White balls are also allowed , but are very uncommon in slow pitch and fastpitch . </P>
<P> In 2004 , high - visibility yellow `` optic '' covering , long - used for restricted flight balls in co-ed recreational leagues , became standard for competitive play . Yellow is the color of official NCAA and NAIA softballs . Yellow softballs are fast becoming the standard for all levels of play for girls ' and women 's play in particular . White balls are also allowed , but are very uncommon in slow pitch and fastpitch . </P>
when did softball change from white to yellow
when did softball change from white to yellow
2004
2004