In 1997 the North American Industrial Classification System (NAICS) was developed to replace the SIC code and is designed to be renewed/revised every 5 years. It was developed jointly by the U.S., Canada, and Mexico in order to provide new comparability in statistics about business activity across North America. NAICS identifies hundreds of new, emerging, and advanced technology industries and reorganizes industries into more meaningful sectors — especially in the service-producing segments of the economy. Generally, the NAICS is much better at covering the industries that exploded in the 1990's — e-commerce and related areas, biotechnology, heavily technical areas, etc. but for some industries, notably retail, using SIC codes is better. For a further discussion go to Census' explanation.
While the system is organized somewhat like the SIC, the numbers are not necessarily comparable. However, the Economic Census web page does offer various conversion tools to bridge between the SIC and various NAICS versions so you can match data under the systems when doing research for the time frame when the government started to use the NAICS system or doing research comparing older data to current.
Here is a chart with the sector and description for the 2017 edition.
|11||Agriculture, Forestry, Fishing and Hunting|
|21||Mining, Quarrying, and Oil and Gas Extraction|
|48-49||Transportation and Warehousing|
|52||Finance and Insurance|
|53||Real Estate and Rental and Leasing|
|54||Professional, Scientific, and Technical Services|
|55||Management of Companies and Enterprises|
|56||Administrative and Support and Waste Management and Remediation Services|
|62||Health Care and Social Assistance|
|71||Arts, Entertainment, and Recreation|
|72||Accommodation and Food Services|
|81||Other Services (except Public Administration)|