In China, regional expressways are a part of the country’s national highway system.
Anhui Expressway Numbering Plan 2016-2030 All routes have two digits.
Fujian Expressway Numbering Plan 2009-2030 Archived 2018-08-17 at the Wayback Machine Fujian Expressway Network Plan 2016-2030 Archived 2019-05-10 at the Wayback Machine Gansu Provincial Road Network Planning (2013-2030) Former numbers (before 2013): Hebei Expressway Numbering Plan 2013-2030 Hebei Expressway Network Plan 2016-2030 Heilongjiang Expressway Numbering Plan 2015-2030 Archived 2018-08-17 at the Wayback Machine Henan Expressway Numbering Plan 2015-2030 Archived 2018-12-21 at the Wayback Machine Henan Expressway Network Plan 2016-2030 Jiangsu Expressway Numbering Plan 2017-2035 Jilin Expressway Numbering Plan 2011-2030 Jilin Expressway Numbering Plan 2014-2030 Archived 2018-08-17 at the Wayback Machine Liaoning Expressway List on Chinese Wiki Ningxia Expressway Numbering Plan 2015-2030 Archived 2018-08-18 at the Wayback Machine Shandong Expressway Numbering Plan 2009-2030 Archived 2016-04-26 at the Wayback Machine Shandong Expressway Network Plan 2015-2030 Shanghai Expressway Numbering Plan 2009-2030 Archived 2013-12-21 at the Wayback Machine Shanxi Expressway Numbering Plan 2009-2030 Archived 2018-08-17 at the Wayback Machine Shanxi Expressway Network Plan 2012-2030 Sichuan Expressway Numbering Plan 2017-2030 Archived 2018-08-14 at the Wayback Machine S51 was originally Jishan Expressway (蓟汕高速公路) Xinjiang Expressway Numbering Plan 2016-2030 North-South Lines: East-West Lines: Connecting Lines: Zhejiang Expressway Numbering Plan 2010-2030 Lishui Expressway Plan 2014-2030 There are 231.3 kilometres (143.7 mi) of expressways in Hong Kong.
Macau has fewer than 50 kilometres (31 mi) of highways, many of which are partially controlled access.
For more see Expressways in Hong Kong and Highways in Macau.