Y1EE - CONSTRUCTION OF TANK AUTOMOTIVE FACILITIES

Y1EZ - CONSTRUCTION OF OTHER INDUSTRIAL BUILDINGS

Y1FE - CONSTRUCTION OF RELIGIOUS FACILITIES

Y1FF - CONSTRUCTION OF PENAL FACILITIES

Y1GA - CONSTRUCTION OF AMMUNITION STORAGE BUILDINGS

Y1GB - CONSTRUCTION OF FOOD OR GRAIN STORAGE BUILDINGS

Y1GC - CONSTRUCTION OF FUEL STORAGE BUILDINGS

Y1GD - CONSTRUCTION OF OPEN STORAGE FACILITIES

Y1GZ - CONSTRUCTION OF OTHER WAREHOUSE BUILDINGS

Y1HA - CONSTRUCTION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACILITIES

Y1HB - CONSTRUCTION OF GOVERNMENT-OWNED GOVERNMENT-OPERATED (GOGO) R&D FACILITIES

Y1JZ - CONSTRUCTION OF MISCELLANEOUS BUILDINGS

Y1NB - CONSTRUCTION OF HEATING AND COOLING PLANTS

Y1NE - CONSTRUCTION OF WATER SUPPLY FACILITIES

Y1NZ - CONSTRUCTION OF OTHER UTILITIES

Y1PA - CONSTRUCTION OF RECREATION FACILITIES (NON-BUILDING)

Y1PC - CONSTRUCTION OF UNIMPROVED REAL PROPERTY (LAND)

Y1PZ - CONSTRUCTION OF OTHER NON-BUILDING FACILITIES

Z1AA - MAINTENANCE OF OFFICE BUILDINGS

Z1AZ - MAINTENANCE OF OTHER ADMINISTRATIVE FACILITIES AND SERVICE BUILDINGS

Z1BA - MAINTENANCE OF AIR TRAFFIC CONTROL TOWERS

Z1BB - MAINTENANCE OF AIR TRAFFIC CONTROL TRAINING FACILITIES

Z1BE - MAINTENANCE OF AIRPORT TERMINALS

Z1CA - MAINTENANCE OF SCHOOLS

Z1EB - MAINTENANCE OF MAINTENANCE BUILDINGS

Z1EC - MAINTENANCE OF PRODUCTION BUILDINGS

Z1EZ - MAINTENANCE OF OTHER INDUSTRIAL BUILDINGS

Z1FD - MAINTENANCE OF DINING FACILITIES

Z1FE - MAINTENANCE OF RELIGIOUS FACILITIES

Z1GD - MAINTENANCE OF OPEN STORAGE FACILITIES

Z1GZ - MAINTENANCE OF OTHER WAREHOUSE BUILDINGS

Z1JA - MAINTENANCE OF MUSEUMS AND EXHIBITION BUILDINGS

Z1JZ - MAINTENANCE OF MISCELLANEOUS BUILDINGS

Z1LZ - MAINTENANCE OF PARKING FACILITIES

Z1NB - MAINTENANCE OF HEATING AND COOLING PLANTS

Z1PA - MAINTENANCE OF RECREATION FACILITIES (NON-BUILDING)

Z1PD - MAINTENANCE OF WASTE TREATMENT AND STORAGE FACILITIES

Z1PZ - MAINTENANCE OF OTHER NON-BUILDING FACILITIES

Z200 - NO DESCRIPTION AVAILABLE

Z2AA - REPAIR OR ALTERATION OF OFFICE BUILDINGS

Z2AB - REPAIR OR ALTERATION OF CONFERENCE SPACE AND FACILITIES

Z2AZ - REPAIR OR ALTERATION OF OTHER ADMINISTRATIVE FACILITIES AND SERVICE BUILDINGS

Z2BA - REPAIR OR ALTERATION OF AIR TRAFFIC CONTROL TOWERS

Z2BB - REPAIR OR ALTERATION OF AIR TRAFFIC CONTROL TRAINING FACILITIES

Z2BE - REPAIR OR ALTERATION OF AIRPORT TERMINALS

Z2CZ - REPAIR OR ALTERATION OF OTHER EDUCATIONAL BUILDINGS

Z2DZ - REPAIR OR ALTERATION OF OTHER HOSPITAL BUILDINGS

Z2EB - REPAIR OR ALTERATION OF MAINTENANCE BUILDINGS

Z2EC - REPAIR OR ALTERATION OF PRODUCTION BUILDINGS

Z2FD - REPAIR OR ALTERATION OF DINING FACILITIES

Z2FE - REPAIR OR ALTERATION OF RELIGIOUS FACILITIES

Z2FZ - REPAIR OR ALTERATION OF OTHER RESIDENTIAL BUILDINGS

Z2GA - REPAIR OR ALTERATION OF AMMUNITION STORAGE BUILDINGS

Z2GC - REPAIR OR ALTERATION OF FUEL STORAGE BUILDINGS

Z2GD - REPAIR OR ALTERATION OF OPEN STORAGE FACILITIES

Z2GZ - REPAIR OR ALTERATION OF OTHER WAREHOUSE BUILDINGS

Z2NB - REPAIR OR ALTERATION OF HEATING AND COOLING PLANTS

Z2PA - REPAIR OR ALTERATION OF RECREATION FACILITIES (NON-BUILDING)

Z2PB - REPAIR OR ALTERATION OF EXHIBIT DESIGN (NON-BUILDING)

Z2PC - REPAIR OR ALTERATION OF UNIMPROVED REAL PROPERTY (LAND)

Z2PD - REPAIR OR ALTERATION OF WASTE TREATMENT AND STORAGE FACILITIES

Z2PZ - REPAIR OR ALTERATION OF OTHER NON-BUILDING FACILITIES

Z2QA - REPAIR OR ALTERATION OF RESTORATION OF REAL PROPERTY (PUBLIC OR PRIVATE)