sentences:  Zeevalking served as acting Mayor of Utrecht from 1 February 1974 until 6 September 1974 following the retirement of Hans van Tuyll van Serooskerken.Zeevalking was appointed as State Secretary for Justice in the Cabinet Den Uyl following the resignation of Jan Glastra van Loon, taking office on 6 June 1975.The Cabinet Den Uyl fell on 22 March 1977 after four years of tensions in the coalition and continued to serve in a demissionary capacity.