{"columns":[{"name":"code","type":"string"},{"name":"label","type":"string"},{"name":"description","type":"string"}],"n_rows":146,"rows_kept":146,"cut":false,"text_format":"parquet-jsonl-2026-10-02","bounds":{"document_bytes":16777216,"package_text_limit_bytes":33554432,"package_text_slack_bytes":1024,"rows_first":2000,"rows_last":500,"rows_between":2000,"halvings":0,"cell_chars":16384,"cell_head_chars":4096,"vector_min":64,"vector_head_fixed":16,"vector_head_variable":64,"kv_value_chars":1048576,"nesting_max":64,"binary_text":true},"cells_cut":0,"cells_bad_utf8":0,"cells_raw":0,"cells_binary":0,"cells_binary_text":0,"cells_vector":0,"n_row_groups":1,"reader":"pyarrow 23.0.1, python 3.13","created_by":"parquet-cpp-arrow version 24.0.0","schema":{"fields":[{"name":"code","type":"string","nullable":false,"metadata":[["description","Originally reported short code."]],"children":null},{"name":"label","type":"string","nullable":true,"metadata":[["description","Longer human-readable code using snake_case"]],"children":null},{"name":"description","type":"string","nullable":true,"metadata":[["description","Long human-readable description of the meaning of a code/label."]],"children":null}],"parquet":"required group field_id=-1 schema {\n  required binary field_id=-1 code (String);\n  optional binary field_id=-1 label (String);\n  optional binary field_id=-1 description (String);\n}\n"},"kv_metadata":[["pandas","{\"index_columns\": [], \"column_indexes\": [], \"columns\": [{\"name\": \"code\", \"field_name\": \"code\", \"pandas_type\": \"unicode\", \"numpy_type\": \"string\", \"metadata\": null}, {\"name\": \"label\", \"field_name\": \"label\", \"pandas_type\": \"unicode\", \"numpy_type\": \"string\", \"metadata\": null}, {\"name\": \"description\", \"field_name\": \"description\", \"pandas_type\": \"unicode\", \"numpy_type\": \"string\", \"metadata\": null}], \"attributes\": {}, \"creator\": {\"library\": \"pyarrow\", \"version\": \"24.0.0\"}, \"pandas_version\": \"2.3.3\"}"],["primary_key","code"],["ARROW:schema",{"$cut":{"chars":2040,"head":""}}],["description","Code table containing descriptions of categorical codes for manufacturers of boilers and environmental control equipment in the EIA-860.\n\n\nMost-recent data:\n  2025\n\n\nProcessing:\n  Data has been cleaned and organized into well-modeled tables that serve as building blocks for downstream wide tables and analyses.\n\nSource:\n  EIA -- Mix of multiple EIA Forms\n\nPrimary key:\n  code"]]}
["AA","advanced_air_technologies","Advanced Air Technologies"]
["AB","advanced_burnertechnologies","Advanced Burner Technologies"]
["ABB","abb_environmental_systems","ABB Environmental Systems"]
["AC","advanced_combustion_technology","Advanced Combustion Technology"]
["AEE","aee_von_roll","AEE Von Roll"]
["AES","alliant_environmental_solutions","Alliant Environmental Solutions"]
["AI","aalborg_industries","Aalborg Industries"]
["AL","alstom","Alstom"]
["AM","american_air_filter","American Air Filter"]
["AN","andritz","Andritz"]
["AP","airpol","AirPol"]
["API","air_pollution_industries","Air Polution Industries"]
["AS","american_shack","American Shack"]
["AT","applied_thermal_systems","Applied Thermal Systems"]
["AU","applied_utility_systems","Applied Utility Systems (AUS)"]
["AX","amerex_industries","Amerex Industries"]
["AZ","alzeta","Alzeta"]
["BC","babcock_borsig_power","Babcock Borsig Power"]
["BE","bact_engineering","Bact Engineering"]
["BI","bleco_industries","Bleco Industries"]
["BL","bechtel_corporation","Bechtel Corporation"]
["BM","bloom","Bloom"]
["BMD","burns_mcdonnell","Burns & McDonnell"]
["BO","bionomics","Bionomics"]
["BPC","belco_pollution_control","Belco Pollution Control"]
["BPE","babcock_power_environmental_inc","Babcock Power Environmental Inc (BPEI)"]
["BR","bros","BROS"]
["BT","belco_technologies","Belco Technologies"]
["BW","babcock_wilcox","Babcock and Wilcox"]
["CA","chiyoda","Chiyoda"]
["CB","clyde_bergeman_eec","Clyde Bergeman EEC"]
["CC","chemico","Chemico"]
["CE","combustion_engineering","Combustion Engineering"]
["CM","combustion_components_associates_inc","Combustion Components Associates Inc"]
["CMI","cmi","CMI"]
["CN","coen","Coen"]
["CO","combustion_equipment","Combustion Equipment"]
["CSI","combustion_solutions_inc","Combustion Solutions Inc"]
["CT","callidus_technologies","Callidus Technologies"]
["DA","delta_conveying_systems","Delta Conveying Systems"]
["DB","deutsche_babcock","Deutsche-Babcock"]
["DC","ducon","Ducon"]
["DD","damper_design_inc","Damper Design Inc"]
["DJ","de_jong_coen_bv","De Jong Coen bv"]
["DL","deltak","Deltak"]
["DM","davey_mckee","Davey McKee"]
["DQ","duquense","Duquense Light Company & Energy Systems Associates"]
["DS","doosan","Doosan"]
["DV","davis","Davis"]
["DX","deltex","Deltex"]
["EA","eagle_air","Eagle Air"]
["EC","econotherm","Econotherm"]
["EE","environmental_engineering","Environmental Engineering"]
["EEC","environmental_elements_corp","Environmental Elements Corporation"]
["EG","energy_environmental_research_corp","Energy and Environmental Research Corp (EER)"]
["EI","entollter_inc","Entollter Inc"]
["EL","electric_power_technologies","Electric Power Technologies"]
["EP","epri","EPRI"]
["EPI","energy_products_idaho","Energy Products of Idaho"]
["ER","eerie_city_iron_works","Eerie City Iron Works"]
["ET","entek","Entek"]
["ETE","entropy_technology","Entropy Technology and Environmental Consultants (ETEC Inc)"]
["FB","faber","Faber"]
["FL","flakt_inc","Flakt Inc"]
["FM","fmc","FMC"]
["FN","forney","Forney"]
["FT","fuel_tech_inc","Fuel Tech Inc"]
["FW","foster_wheeler","Foster Wheeler"]
["GE","general_electric","General Electric"]
["GF","grafwolff","Grafwolff"]
["GR","ge_energy","GE Energy and Environmental Research Corp (GEEER)"]
["GT","gotaverken","Gotaverken"]
["HA","hamon","Hamon"]
["HL","holman","Holman"]
["HT","hitachi","Hitachi"]
["IC","international_combustion_ltd","International Combustion Limited"]
["ID","indeck","Indeck"]
["IH","in_house_design","In house design"]
["IHI","ishikawajima_harima","Ishikawajima-Harima Heavy Industries  (IHI Corp)"]
["IS","innovative_steam_technology","Innovative Steam Technology"]
["JO","joy_manufacturing","Joy Manufacturing"]
["JZ","john_zink_todd_combustion","John Zink Todd Combustion/Todd Combustion"]
["KC","korea_cottrell","Korea Cottrell"]
["KE","m_w_kellogg","M. W. Kellogg"]
["KL","keeler_dorr_oliver","Keeler Dorr Oliver"]
["KP","kvaerner_pulping","Kvaerner Pulping"]
["KR","krebs_engineers","Krebs Engineers"]
["KW","kawasaki_heavy_industries","Kawaski Heavy Industries"]
["LLB","lurgi_lentjes_bischoff","Lurgi Lentjes Bischoff"]
["MB","mitsui_babcock","Mitsui-Babcock"]
["MC","macrotek","Macrotek"]
["ME","mitchell_engineering","Mitchell Engineering"]
["MG","mcgill_air_clean","McGill Air Clean"]
["MI","mitsubishi_heavy_industries","Mitsubishi Heavy Industries"]
["MK","merrick_industries","Merrick Industries"]
["MT","mobotec","Mobotec"]
["MX","marselex","Marselex"]
["NB","nebraska_boiler","Nebraska Boiler"]
["NC","natcom_inc","Natcom Inc"]
["NE","nei","NEI"]
["NL","noell_inc","Noell Inc"]
["NM","nem","NEM"]
["NPA","neptune_airpol","Neptune Airpol"]
["NSP","nsp","NSP"]
["NT","nooter_erickson","Nooter Erickson"]
["OT","other","Other (specify in a Footnote on SCHEDULE 7, COMMENTS)"]
["PA","procedair","Procedair"]
["PB","peabody","Peabody"]
["PI","power_and_industrial","Power and Industrial"]
["PL","pillard","Pillard"]
["PPC","ppc_industries","PPC Industries"]
["PR","pyro_power","Pyro Power"]
["PS","peerless_manufacturing_co","Peerless Manufacturing Company"]
["PU","pure_air","Pure Air"]
["PX","phoenix_combustion","Phoenix Combustion"]
["RC","research_cottrell","Research Cottrell"]
["RD","rodenhuis_verloop","Rodenhuis and Verloop"]
["RI","riley","Riley"]
["RJ","rjm","RJM"]
["RR","rolls_royce","Rolls Royce"]
["RS","riley_stoker","Riley-Stoker/Riley Power"]
["RV","rv_industries","RV Industries"]
["SB","smartburn","SmartBurn"]
["SC","southern_co","Southern Company"]
["SHU","saarberg_holter_umweltechnick","Saarberg-Holter Umweltechnick GmbH"]
["SK","schenck_weigh_feeders","Schenck Weigh Feeders"]
["SM","smoot_co","Smoot Company"]
["ST","sterling","Sterling"]
["SW","siemens_westinghouse","Siemens-Westinghouse"]
["TC","turbosonic","Turbosonic"]
["TEC","thermal_equipment_corp","Thermal Equipment Corporation"]
["TH","thyssen_cea","Thyssen/CEA"]
["TK","turbotak","Turbotak"]
["TM","tampella_power_corp","Tampella Power Corporation"]
["TP","tempala_power","Tempala Power"]
["TS","toshiba","Toshiba"]
["UE","utility_engineering","Utility Engineering"]
["UM","united_mcgill","United McGill"]
["UO","universal_oil_products","Universal Oil Products"]
["VO","vogt","Vogt Machine Company/Vogt Power"]
["WAP","wheelabrator_air_pollution_control","Wheelabrator Air Pollution Control"]
["WE","westinghouse","Westinghouse"]
["WG","weigl_engineering","Weigl Engineering"]
["WI","wickes","Wickes"]
["ZC","zeeco","Zeeco"]
["ZN","zurn","Zurn"]