Registration is open from December 1st, 2015. The registration fee amounts to R$ 1.600,00 (equivalent to US$ 400,) and for students a lower value of R$ 500,00 (equivalent to US$ 150).
For students in particular, there is option to ask for financial support, to be given by ICTP-SAIFR, directed to latin-american students, to attend both ASOS and the following 2-day School at ICTP-SAIFR on 8-9/July. For local students the registration amount is R$ 50,00.
Login form (paper submission and payments)
There is a special measure from June through September of waiving visas for travelers from the USA, Canada, Japan and Australia, due to the Olympic games. The list of countries not needing visas is also given in the link below: