Qualification system
A total of sixteen teams per gender will qualify to compete at the games. The host nation (Canada) qualifies in each event, along with the top five ranked nations in South America and the top ten nations ranked in North, Central America and the Caribbean. The rankings on January 1, 2015 will be used to determine the teams.
References
Beach volleyball at the 2015 Pan American Games – Qualification Wikipedia(Text) CC BY-SA