Understanding Occupational Regulation, a new report from the United Kingdom Commission for Employment and Skills (UKCES), employs a qualitative approach to explore the design, implementation and impact of occupational regulation, via ten case studies of voluntary and mandatory programs. The report explores the rationale, characteristics, and impact of occupational regulation in the United Kingdom. It also provides useful schematic pointers to those seeking to design and implement forms of occupational regulation. The report builds on earlier work undertaken by UKCES, most notably the 2011 publication A review of occupational regulation and its impact.