German social law has a rule for the citizen who asks the wrong office. Under § 16 of the First Book of the Social Code, an application filed with an authority that is not responsible, an unzuständig authority, must be passed on to the responsible one unverzüglich, without delay. Since April 2011, the public service number 115 has answered questions about dealings with the authorities. Its promise is that it does not matter welche Behörde, Verwaltungsebene oder Zuständigkeit betroffen ist, which authority, level of government or area of responsibility is involved.