At this time, due to licensing constraints, we only allow educational institutions and educationally focused non-profits within the United States. The challenges are meant to be used as a tool for them to teach/assess the skills of their students.
Additionally, at this time only educator's can request access to the NICE Challenges directly. Students will need to encourage an educator to signup in order to get access themselves.
However, in some circumstances, we can allow temporary trial access outside of these restrictions should the reasoning being sufficient.