Maintenance and operations personnel refers to personnel who support the maintenance and operation of schools, school security and ancillary services, such as the transportation of students to and from school and food services operations. This category includes the following types of personnel: masons, carpenters, electricians, locksmiths, maintenance repairers, painters and paperhangers, plasterers, plumbers, and vehicle mechanics. It also includes bus drivers and other vehicle operators, construction workers, gardeners and groundskeepers, bus monitors and crossing guards, cooks/food carers, custodians, food servers, dormitory supervisors, and security guards.