According to the last revision of WAKO Board we are pleased of officially presenting the DEFINITIVE, CLEAN and REVISED WAKO RULES, finally updated on March 2011, that you can find also under "Rules" section:
Chapter2_Ring Sports_General Rules - includes Art. 17 about how Muslim women dress in WAKO events
Chapter3_Tatami Sports_General Rules - includes Art. 12 about how Muslim women dress in WAKO events
Always under "Rules" section the link "Tracked Changes on WAKO Rules" is at disposal for you to check which kind of corrections have been made in comparison with the "Old WAKO Rules"