商法
In 1893 he was appointed Secretary of State of the Reichsjustizamt, and he remained in this position under the changing chancellorship of Leo von Caprivi, Chlodwig, Prince of Hohenlohe-Schillingsfürst, Bernhard von Bülow and Theobald von Bethmann-Hollweg until 1909. Nieberding coordinated the elaboration of a new German civil code, the Bürgerliches Gesetzbuch (BGB), the associated Commercial law (Handelsgesetzbuch) and the codes of criminal law and criminal and civil procedure; thus he was responsible for the standardisation of German law after the Unification of Germany.