| RAILROAD
TRANSPORTATION 4011 Railroads, line-haul operating 4013 Switching and terminal services LOCAL AND INTERURBAN PASSENGER TRANSIT |
TRANSPORTATION
BY AIR 4512 Air transportation, scheduled 4513 Air courier services 4522 Air transportation, nonscheduled 4581 Airports, flying fields, & services PIPELINES, EXCEPT NATURAL GAS 4612 Crude petroleum pipelines 4613 Refined petroleum pipelines 4619 Pipelines, (not elsewhere classified) TRANSPORTATION SERVICES 4724 Travel agencies 4725 Tour operators 4729 Passenger transport arrangement, (not elsewhere classified) 4731 Freight transportation arrangement 4741 Rental of railroad cars 4783 Packing and crating 4785 Inspection & fixed facilities 4789 Transportation services, (not elsewhere classified) COMMUNICATION 4812 Radiotelephone communications 4813 Telephone communications, except radio 4822 Telegraph & other communications 4832 Radio broadcasting stations 4833 Television broadcasting stations 4841 Cable and other pay TV services 4899 Communication services, (not elsewhere classified) ELECTRIC, GAS, AND SANITARY SERVICES 4911 Electric services 4922 Natural gas transmission 4923 Gas transmission and distribution 4924 Natural gas distribution 4925 Gas production and/or distribution 4931 Electric and other services combined 4932 Gas and other services combined 4939 Combination utilities, (not elsewhere classified) 4941 Water supply 4952 Sewerage systems 4953 Refuse systems 4959 Sanitary services, (not elsewhere classified) 4961 Steam and air-conditioning supply 4971 Irrigation systems |