What is SEAC and how can parents use it?
Every Ontario school board must have a Special Education Advisory Committee (SEAC) - a publicly accessible committee that advises the board on special education policy. [Education Act] Parents can attend meetings, depute (present) to SEAC, and influence board-level decisions on EA allocation, ABA support, and autism classroom resources.
Source: Ontario Education Act, Section 57.1 · Open source record