Z1CA - MAINTENANCE OF SCHOOLS
Z1GD - MAINTENANCE OF OPEN STORAGE FACILITIES
Z1GZ - MAINTENANCE OF OTHER WAREHOUSE BUILDINGS
Z1PZ - MAINTENANCE OF OTHER NON-BUILDING FACILITIES
Z2CA - REPAIR OR ALTERATION OF SCHOOLS
Z2FA - REPAIR OR ALTERATION OF FAMILY HOUSING FACILITIES
Z2FZ - REPAIR OR ALTERATION OF OTHER RESIDENTIAL BUILDINGS
Z2GD - REPAIR OR ALTERATION OF OPEN STORAGE FACILITIES
Z2GZ - REPAIR OR ALTERATION OF OTHER WAREHOUSE BUILDINGS
Z2MG - REPAIR OR ALTERATION OF EPG FACILITIES - SOLAR