The Union Building Committee (UBC) is the most important and influential representative body in the school, equally recognized by administration and members. The UBC is the collective voice of teachers and paraprofessionals to ensure that UESF members are involved in the school-wide decision making that affects their work lives and their students’ education.  The role of the UBC is to ensure that the rights that teachers and paraprofessionals have struggled for over time are not violated, and to enforce the contract. As the representative of the union at the worksite, the Building Rep plays an important role in every school. He or she is a member of the UESF Assembly and the liaison to the UESF staff and leadership. The Building Rep also chairs the UBC, distributes union materials and information to members, and meets with the principal on a regular basis to solve problems at the school.