An analysis of transfers of members of parliament (MPs) between national and regional parliaments in Belgium confirms that career patterns in multilevel political systems do not conform to a rigid hierarchical model. These patterns are instead highly diverse and fit the integrated model best. The regional parliament exerts the stronger magnetic pull on the politicians. The hypothesis that the transfers to the regional parliament would increase with regional competences was partially confirmed. Furthermore, transfers to regional parliaments are not higher in regions with a strong regionalist current. A comparison with Scotland (UK) and Catalonia (Spain) suggests that the development of a separate career circuit depends mostly on institutional factors.