Returns a list of PSC search tree nodes, with populated children if depth > 0.

Documentation for this endpoint can be found here.

GET /api/v2/references/filter_tree/psc/Service/C/C1/
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Cache-Trace: no-cache
Content-Type: application/json
Vary: Accept

{
    "results": [
        {
            "id": "C1CZ",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER EDUCATIONAL BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1AA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: OFFICE BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1AB",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: CONFERENCE SPACE AND FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1AZ",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER ADMINISTRATIVE FACILITIES/SERVICE BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1BA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: AIR TRAFFIC CONTROL TOWERS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1BB",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: AIR TRAFFIC CONTROL TRAINING FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1BC",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: RADAR AND NAVIGATIONAL FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1BD",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: AIRPORT RUNWAYS AND TAXIWAYS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1BE",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: AIRPORT TERMINALS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1BF",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: MISSILE SYSTEM FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1BG",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: ELECTRONIC AND COMMUNICATIONS FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1BZ",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER AIRFIELD STRUCTURES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1CA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: SCHOOLS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1DA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: HOSPITALS AND INFIRMARIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1DB",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: LABORATORIES AND CLINICS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1DZ",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER HOSPITAL BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1EA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: AMMUNITION FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1EB",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: MAINTENANCE BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1EC",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: PRODUCTION BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1ED",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: SHIP CONSTRUCTION AND REPAIR FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1EE",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: TANK AUTOMOTIVE FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1EZ",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER INDUSTRIAL BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1FA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: FAMILY HOUSING FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1FB",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: RECREATIONAL BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1FC",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: TROOP HOUSING FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1FD",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: DINING FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1FE",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: RELIGIOUS FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1FF",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: PENAL FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1FZ",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER RESIDENTIAL BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1GA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: AMMUNITION STORAGE BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1GB",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: FOOD OR GRAIN STORAGE BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1GC",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: FUEL STORAGE BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1GD",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: OPEN STORAGE FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1GZ",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER WAREHOUSE BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1HA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: GOVERNMENT-OWNED CONTRACTOR-OPERATED (GOCO) R&D FACS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1HB",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: GOVERNMENT-OWNED GOVERNMENT-OPERATED (GOGO) R&D FACS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1HC",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: GOVT-OWNED CTR-OPERATED (GOCO) ENVIRONMENTAL LABORATORIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1HZ",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: GOVT-OWNED GOVT-OPERATED (GOGO) ENVIRONMENTAL LABORATORIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1JA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: MUSEUMS AND EXHIBITION BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1JB",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: TESTING AND MEASUREMENT BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1JZ",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: MISCELLANEOUS BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1KA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: DAMS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1KB",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: CANALS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1KC",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: MINE FIRE CONTROL FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1KD",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: MINE SUBSIDENCE CONTROL FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1KE",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: SURFACE MINE RECLAMATION FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1KF",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: DREDGING FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1KZ",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER CONSERVATION AND DEVELOPMENT FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1LA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: AIRPORT SERVICE ROADS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1LB",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: HIGHWAYS, ROADS, STREETS, BRIDGES, AND RAILWAYS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1LC",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: TUNNELS AND SUBSURFACE STRUCTURES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1LZ",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: PARKING FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1MA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: EPG FACILITIES - COAL",
            "count": 0,
            "children": null
        },
        {
            "id": "C1MB",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: EPG FACILITIES - GAS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1MC",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: EPG FACILITIES - GEOTHERMAL",
            "count": 0,
            "children": null
        },
        {
            "id": "C1MD",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: EPG FACILITIES - HYDRO",
            "count": 0,
            "children": null
        },
        {
            "id": "C1ME",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: EPG FACILITIES - NUCLEAR",
            "count": 0,
            "children": null
        },
        {
            "id": "C1MF",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: EPG FACILITIES - PETROLEUM",
            "count": 0,
            "children": null
        },
        {
            "id": "C1MG",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: EPG FACILITIES - SOLAR",
            "count": 0,
            "children": null
        },
        {
            "id": "C1MH",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: EPG FACILITIES - WIND",
            "count": 0,
            "children": null
        },
        {
            "id": "C1MZ",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: EPG FACILITIES - OTHER, INCLUDING TRANSMISSION",
            "count": 0,
            "children": null
        },
        {
            "id": "C1NA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: FUEL SUPPLY FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1NB",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: HEATING AND COOLING PLANTS",
            "count": 0,
            "children": null
        },
        {
            "id": "C1NC",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: POLLUTION ABATEMENT AND CONTROL FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1ND",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: SEWAGE AND WASTE FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1NE",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: WATER SUPPLY FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1NZ",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER UTILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1PA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: RECREATIONAL FACILITIES (NON-BUILDING)",
            "count": 0,
            "children": null
        },
        {
            "id": "C1PB",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: EXHIBIT DESIGN (NON-BUILDING)",
            "count": 0,
            "children": null
        },
        {
            "id": "C1PC",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: UNIMPROVED REAL PROPERTY (LAND)",
            "count": 0,
            "children": null
        },
        {
            "id": "C1PD",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: WASTE TREATMENT AND STORAGE FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1PZ",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: OTHER NON-BUILDING FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C1QA",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ARCHITECT AND ENGINEERING- CONSTRUCTION: RESTORATION OF REAL PROPERTY (PUBLIC OR PRIVATE)",
            "count": 0,
            "children": null
        },
        {
            "id": "C111",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "BLDGS & FAC / ADMIN & SVC BLDGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C112",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "BLDGS & FAC / AIRFIELD, COM & MSL F",
            "count": 0,
            "children": null
        },
        {
            "id": "C113",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "EDUCATIONAL BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C114",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "HOSPITAL BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C115",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "INDUSTRIAL BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C116",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "RESIDENTIAL BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C117",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "WAREHOUSE BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C118",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "RESEARCH AND DEVELOPMENT FACILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C119",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "OTHER BUILDINGS",
            "count": 0,
            "children": null
        },
        {
            "id": "C121",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "CONSERVATION AND DEVELOPMENT",
            "count": 0,
            "children": null
        },
        {
            "id": "C122",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "HIGHWAY, ROADS, STREETS, BRIDGES, A",
            "count": 0,
            "children": null
        },
        {
            "id": "C123",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "ELECTRIC POWER GENERATION (EPG)",
            "count": 0,
            "children": null
        },
        {
            "id": "C124",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "UTILITIES",
            "count": 0,
            "children": null
        },
        {
            "id": "C129",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "OTHER NON-BUILDING STRUCTURES",
            "count": 0,
            "children": null
        },
        {
            "id": "C130",
            "ancestors": [
                "Service",
                "C",
                "C1"
            ],
            "description": "RESTORATION",
            "count": 0,
            "children": null
        }
    ]
}