This report presents the results of an intervention research project and follow-up carried out in 2017. The project teams, consisting of employees from Sörmland's municipalities and county council, endeavoured to interpret how the guidelines for safe and efficient discharge processes might be put into practice. Collaboration between different actors in the county council and municipalities is crucial to ensure a positive patient experience and a safe return after hospitalization. The Law (2017: 612) on co-operation in the discharge process, as well as local guidelines for safe retirement and effective collaboration that support the application of the law, seek to achieve exactly these outcomes. Following the introduction of the new guidelines in 2017, the research project aimed to investigate and work actively with the guidelines and their subsequent implementation. During 8 months from April to November 2017, the project included 55 participants, in 8 teams, from more than 20 different organizations within Sörmland’s municipalities and county council. The teams worked on adapting and/or finding new solutions to routines and flows in the discharge process that corresponded to the new guidelines. The project work was grounded in service design methodology and incorporated a patient as well as next-of-kin perspective. Service design is both an approach and methodology with the user's needs and experiences as its cornerstone. Utilizing service design enables the examination of several possible solutions, and the iterative testing of the solutions with relevant actors. The teams used approaches and methods from service design to develop and update routines, activities and processes, while upholding the patient as central to their work. The goal of this project was to develop person-centred approaches and routines through service design, and that these should be reflected in the guideline document. In most cases, the teams came up with solutions that led to increased collaboration and changes in work routines. The analysis shows that the solutions aim at enhancing both the safety of the individual and streamlining the work processes, through increased patient /user/ next-of-kin involvement. Furthermore, the analysis of the teams’ work shows that through a joint focus on the end user, cooperation between units is facilitated. Among other things, the project has contributed to the renaming of the guidelines from ‘Safe and Effective discharge process’ to ‘Secure return to home and Effective Collaboration’. However, the direct impact on the guidelines in general is otherwise difficult to assess and quantify. In summary, the guidelines that the project has worked with cannot be seen as person-centred in their application. A person-centred approach is included in the values stated in the guidelines but is not integrated with the ensuing instructions and process flows. However, by using service design, the organizations have created routines that conform to the guidelines and are personcentred. They are based on the patient's perspective and promote their involvement in the discharge process. In addition, the work has supported the participants by creating collaboration between organizations.