The timing of rush, or the recruitment process for fraternities and sororities, can vary from college to college. Generally, rush week happens at the beginning of the academic year, however, some schools have formal recruitment during the first semester, while others wait until the second semester.
For instance, some universities have a spring rush specifically for freshmen. This allows freshmen to get acclimated to their new environment before deciding to join Greek life. Other colleges may have rush events in both the fall and spring semesters, with the fall events often focused on upperclassmen.
It's also important to note that the process can be different for fraternities and sororities. Some sororities have a more structured recruitment process that may occur at specific times of the year, while fraternities might have a more informal process that happens throughout the year.
Therefore, it's best to check with your specific institution or the Greek life office to find out when rush starts at your school.