Groups of contestants

Number of previous participations in IAO & APAO (total)	Y   e   a   r       o   f       b   i   r   t   h
	1999 and earlier	2000	2001	2002	2003	2004	2005 and later
Never
1
2 and more

	Participation permitted in both a and b groups
	Participation permitted in b group only
	Participation not permitted
	Impossible situation

• The full rules for formation of the teams published in the 2^nd announcement

• The XIV Asian-Pacific Astronomy Olympiad (XIV APAO) main page