... occur in professional fields such as health care; real estate; professional, scientific, and technical services; administration; finance; education; the arts; information; and management.44 Manufacturing, ... of Removing Section 199 and Changing Dual Capacity Rules Section 199 and Dual Capacity rules maintain a level domestic and international playing field for U.S. oil and gas firms and, in turn, ... 2,822 Manufacturing 20,490 Wholesale trade 4,265 Retail trade 9,537 Transportation and warehousing 4,197 Information 1,572 Finance and insurance 3,856 Real estate and rental and leasing 5,239...