Establishes Co-Curricular Activity Emergency Grant Program to support operations of co-curricular activities at public schools; appropriates $750,000.

S 3129 creates a $750,000 emergency grant program within New Jersey's Department of Education to support public school co-curricular activities, such as debate clubs, theater, and music programs, which operate outside regular school hours and supplement students' academic experiences. School districts, charter schools, and renaissance schools can apply for grants to fund specific activities, with priority given to those most impacted by pandemic-related revenue losses. The program requires applicants to specify which activities the funds will support, and the Commissioner of Education determines grant amounts and eligibility. This legislation directly affects public schools and their students by providing emergency financial support for non-academic, extracurricular programs.