Nursery and Tree Production, Forest Nurseries and Gathering of Forest Products, Support Activities for Oil and Gas Operations, Support Activities for Coal Mining, Support Activities for Metal Mining

Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Other Aircraft Parts and Auxiliary Equipment Manufacturing, Air Traffic Control, Other Support Activities for Air Transportation, Wired Telecommunications Carriers

National Security

Industrial Building Construction, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction, Power and Communication Line and Related Structures Construction

Fire Protection

Police Protection

Administration of Public Health Programs

Architectural Services, Engineering Services, Computer Facilities Management Services, Administrative Management and General Management Consulting Services, Environmental Consulting Services

Other General Government Support

All Other Miscellaneous Fabricated Metal Product Manufacturing, Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufactur, Other Scientific and Technical Consulting Services, Investigation Services, Security Guards and Patrol Services

Administration of Education Programs

Administrative Management and General Management Consulting Services, All Other Miscellaneous Schools and Instruction, National Security

Teleproduction and Other Postproduction Services, Other Accounting Services, Engineering Services, Other Specialized Design Services, Custom Computer Programming Services

All Other Legal Services, Administrative Management and General Management Consulting Services, Other Management Consulting Services, Other Scientific and Technical Consulting Services, Legal Counsel and Prosecution

Other General Government Support

Administration of Public Health Programs

International Affairs

Administration of Veterans' Affairs

LEGAL

Offices of Certified Public Accountants, Administrative Management and General Management Consulting Services, Professional and Management Development Training, Administration of Education Programs

Investigation Services, Other Justice, Public Order, and Safety Activities, National Security, International Affairs

Wired Telecommunications Carriers, Engineering Services, Surveying and Mapping (except Geophysical) Services, Testing Laboratories, Custom Computer Programming Services

Commercial and Institutional Building Construction, Highway, Street, and Bridge Construction, Plumbing, Heating, and Air-Conditioning Contractors, Aircraft Manufacturing, Ship Building and Repairing

Police Protection, Legal Counsel and Prosecution, National Security

Offices of Real Estate Agents and Brokers, Residential Property Managers, Nonresidential Property Managers, Other Activities Related to Real Estate, Offices of Notaries