1. § 20 section 2 sentences 1 and 2 number 1, section 4, and section 5, § 23 number 1, and § 77 section 4 numbers 1 and 2 of the Second Book of the Code of Social Law, each in the version of Article 2 of the Act on Determining Standard Needs and Amending the Second and Twelfth Book of the Code of Social Laws of 24 March 2011 (Federal Law Gazette I, page 453) and § 8 section 1 numbers 1, 2, 4 and 6, and section 2 numbers 1 and 3 of the Act on Determining Standard Needs (Regelbedarfs-Ermittlungsgesetz) in the version of Article 1 of the Act on Determining Standard Needs and Amending the Second and Twelfth Book of the Code of Social Law of 24 March 2011 (Federal Law Gazette I, page 453) each in conjunction with § 20 section 1 sentences 1 and 2 of the Second Book of the Code of Social Law in the version of Article 2 of the Act on Determining Standard Needs and Amending the Second and Twelfth Book of the Code of Social Laws of 24 March 2011 (Federal Law Gazette I, page 453) and § 28a of the Twelfth Book of the Code of Social Laws in the version of Article 3 of the Act on Determining Standard Needs and Amending the Second and Twelfth Book of the Code of Social Laws of 24 March 2011 (Federal Law Gazette I, page 453) and the annex to § 28 of the Twelfth Book of the Code of Social Law in the version of Article 3 number 42 of the Act on Determining Standard Needs and Amending the Second and Twelfth Books of the Code of Social Laws of 24 March 2011 (Federal Law Gazette I, page 453) and § 2 of the Regulation on Updating Standard Need Levels in Accordance with § 138 number 2 of the Twelfth Book of the Code of Social Law for the Year 2012 of 17 October 2011 (Federal Law Gazette I, page 2090) are compatible with Article 1 section 1 of the Basic Law in conjunction with the principle of the welfare state enshrined in Article 20 section 1 of the Basic Law. 2. The constitutional complaint is rejected. Reasons: A. The specific judicial review proceedings and the constitutional complaint concern the issue of whether the Act on Determining Standard Needs and Amending the Second and Twelfth Book of the Code of Social Law of 24 March 2011 meets the requirements derived from Art. 1 sec. 1 in conjunction with Art. 20 sec.1 GG for guaranteeing a dignified minimum existence. In particular, the proceedings concern the standard benefit paid for single persons and for cohabitating adults as well as for adolescents aged 15 to 18 and for children up to their 6th birthday. 5/29 1