The aim of this study is to analyse how formal adult education in Sweden is enacted locally. For this analysis, the data consist of a nationwide survey sent to Swedish municipalities, background data on municipalities from public statistics and interviews with representatives of 20 municipalities. Swedish formal adult education, which includes general, vocational and Swedish for immigrants courses, is a responsibility of the municipality, but courses are not necessarily organised internally by the municipality. The results show how adult education is enacted in different ways. There are systems for outsourcing courses to various other providers, typically private training companies. There are thus both private and public providers, but courses are paid for by the municipality, which is also responsible of quality assurance. The quality assurance is typically enacted with a focus on students, via surveys and statistics on outcomes, but quality measures also target providers. Swedish adult education is characterised by extensive marketisation with many private providers and a broad supply of courses, but the municipalities are experiencing quality problems among providers, and some municipalities are considering extending their internal provision. There is also a labour-market focus where training programmes to improve adults' employability are prioritised.