Rebecca Sardoni pleaded guilty in September to assault and other counts.
The Ocean County prosecutor's office says the 29-year-old got on a Toms River school bus in October 2012 screaming profanities and then assaulted two students. She says they were bullying her 9-year-old daughter.
Officials say the boys were not seriously injured.
Sardoni told The Associated Press soon after the encounter that she regretted boarding the bus, but she denied touching or hitting anyone. She said she was distraught, but "wasn't crazy woman upset."
A school spokeswoman says the bullying complaint was reviewed and the matter is considered closed, but she wouldn't say what officials concluded.