PSC codes

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

Y1HC CONSTRUCTION OF GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) ENVIRONMENTAL LABORATORIES

Y1HZ CONSTRUCTION OF GOVERNMENT-OWNED GOVERNMENT-OPERATED (GOGO) ENVIRONMENTAL LABORATORIES

Y1JA CONSTRUCTION OF MUSEUMS AND EXHIBITION BUILDINGS

Y1JB CONSTRUCTION OF TESTING AND MEASUREMENT BUILDINGS

Y1JZ CONSTRUCTION OF MISCELLANEOUS BUILDINGS

Y1KA CONSTRUCTION OF DAMS

Y1KB CONSTRUCTION OF CANALS

Y1KC CONSTRUCTION OF MINE FIRE CONTROL FACILITIES

Y1KD CONSTRUCTION OF MINE SUBSIDENCE CONTROL FACILITIES

Y1KE CONSTRUCTION OF SURFACE MINE RECLAMATION FACILITIES

Y1KF CONSTRUCTION OF DREDGING FACILITIES

Y1KZ CONSTRUCTION OF OTHER CONSERVATION AND DEVELOPMENT FACILITIES

Y1LA CONSTRUCTION OF AIRPORT SERVICE ROADS

Y1LB CONSTRUCTION OF HIGHWAYS, ROADS, STREETS, BRIDGES, AND RAILWAYS

Y1LC CONSTRUCTION OF TUNNELS AND SUBSURFACE STRUCTURES

Y1LZ CONSTRUCTION OF PARKING FACILITIES

Y1MA CONSTRUCTION OF EPG FACILITIES - COAL

Y1MB CONSTRUCTION OF EPG FACILITIES - GAS

Y1MC CONSTRUCTION OF EPG FACILITIES - GEOTHERMAL

Y1MD CONSTRUCTION OF EPG FACILITIES - HYDRO

Y1ME CONSTRUCTION OF EPG FACILITIES - NUCLEAR

Y1MF CONSTRUCTION OF EPG FACILITIES - PETROLEUM

Y1MG CONSTRUCTION OF EPG FACILITIES - SOLAR

Y1MH CONSTRUCTION OF EPG FACILITIES - WIND

Y1MZ CONSTRUCTION OF EPG FACILITIES - OTHER, INCLUDING TRANSMISSION

Y1NA CONSTRUCTION OF FUEL SUPPLY FACILITIES

Y1NB CONSTRUCTION OF HEATING AND COOLING PLANTS

Y1NC CONSTRUCTION OF POLLUTION ABATEMENT AND CONTROL FACILITIES

Y1ND CONSTRUCTION OF SEWAGE AND WASTE FACILITIES

Y1NE CONSTRUCTION OF WATER SUPPLY FACILITIES

Y1NZ CONSTRUCTION OF OTHER UTILITIES

Y1PA CONSTRUCTION OF RECREATION FACILITIES (NON-BUILDING)

Y1PB CONSTRUCTION OF EXHIBIT DESIGN (NON-BUILDING)

Y1PC CONSTRUCTION OF UNIMPROVED REAL PROPERTY (LAND)

Y1PD CONSTRUCTION OF WASTE TREATMENT AND STORAGE FACILITIES

Y1PZ CONSTRUCTION OF OTHER NON-BUILDING FACILITIES

Y1QA CONSTRUCTION OF RESTORATION OF REAL PROPERTY (PUBLIC OR PRIVATE)

Y2 CONSTRUCT NONBUILDING FACILITIES

Y3 CONSTRUCT OF RESTORATION ACTIVITIES

Z MAINT, REPAIR, ALTER REAL PROPERTY

Z1 MAINT, ALTER, REPAIR BUILDINGS

Z1AA MAINTENANCE OF OFFICE BUILDINGS

Z1AB MAINTENANCE OF CONFERENCE SPACE AND FACILITIES

Z1AZ MAINTENANCE OF OTHER ADMINISTRATIVE FACILITIES AND SERVICE BUILDINGS

Z1BA MAINTENANCE OF AIR TRAFFIC CONTROL TOWERS

Z1BB MAINTENANCE OF AIR TRAFFIC CONTROL TRAINING FACILITIES

Z1BC MAINTENANCE OF RADAR AND NAVIGATIONAL FACILITIES

Z1BD MAINTENANCE OF AIRPORT RUNWAYS AND TAXIWAYS

Z1BE MAINTENANCE OF AIRPORT TERMINALS