There is no difference, what is acceptable at home is now acceptable at school.
New blue box materials for the schools include: Tetra-Pak containers (juice boxes), clamshell containers, yogurt containers, gable top containers (milk cartons), empty aerosol containers, spiral wound containers, aluminum plates and foil, and a wider range of plastics including plastic bottles, jugs and tubs marked, 1 through 7. Grey box materials include: construction paper, box board, coloured and kraft paper.