paragraph_text: ISO 3166-1 is part of the ISO 3166 standard published by the International Organization for Standardization (ISO), and defines codes for the names of countries, dependent territories, and special areas of geographical interest. The official name of the standard is "Codes for the representation of names of countries and their subdivisions – Part 1: Country codes". It defines three sets of country codes:

paragraph_text: ISO 3166-2:GB is the entry for the United Kingdom in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1. The codes and structures used are provided to the ISO by British Standards and the Office for National Statistics.

paragraph_text: ISO 3166-2:GH is the entry for Ghana in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

paragraph_text: ISO 3166-2:AO is the entry for Angola in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

paragraph_text: ISO 7001 ("public information symbols") is a standard published by the International Organization for Standardization that defines a set of pictograms and symbols for public information. The latest version, ISO 7001:2007, was published in November 2007.

paragraph_text: The International Organization for Standardization (ISO) is an international standard - setting body composed of representatives from various national standards organizations.

paragraph_text: ISO 3166-2:CN is the entry for China in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g. provinces or states) of all countries coded in ISO 3166-1.

paragraph_text: ISO/TC 68 is a technical committee formed within the International Organization for Standardization (ISO), of Geneva, Switzerland, tasked with developing and maintaining international standards covering the areas of banking, securities, and other financial services. As the standards organization under ISO responsible for the development of all international financial services standards, ISO/TC 68 plays a key role in the development and adoption of new technologies in the banking, brokerage and insurance industries. Many of its current work projects involve developing ecommerce standards such as better online security for financial transactions, XML standards for financial transactions and standards to reduce the cost and delays of international financial transactions. The membership of ISO/TC 68, consists of more than 30 organizations assigned by participating national standards bodies plus additional international standards development organizations that work collaboratively toward global financial services standards development.

paragraph_text: ISO 4031 is an international standard first issued in 1978 by the International Organization for Standardization. It defined the representation of local time differentials, commonly referred to as time zones. It has since been superseded by a newer standard, ISO 8601. This newer standard sets out the current formats for local time differentials and so ISO 4031 is no longer in use.

paragraph_text: ISO 21500:2012, Guidance on Project Management, is an international standard developed by the International Organization for Standardization, or ISO starting in 2007 and released in 2012. It was intended to provide generic guidance, explain core principles and what constitutes good practice in project management. The ISO technical committee dealing with project management, ISO/PC 236 was held by the American National Standards Institute (ANSI) which had approved four standards that used PMI materials. one of which was ANSI/PMI 99-001-2008, A Guide to the Project Management Body of Knowledge - 4th Edition (PMI BoK® Guide - 4th Edition) (revision and re-designation of ANSI/PMI 99-001-2004): 11/20/2008.

paragraph_text: ISO 3307 is an international standard for date and time representations issued by the International Organization for Standardization (ISO). The standard was issued in 1975, then was superseded by ISO 8601 in 1988.

paragraph_text: Unicode is developed in conjunction with the International Organization for Standardization and shares the character repertoire with ISO/IEC 10646: the Universal Character Set. Unicode and ISO/IEC 10646 function equivalently as character encodings, but The Unicode Standard contains much more information for implementers, covering—in depth—topics such as bitwise encoding, collation and rendering. The Unicode Standard enumerates a multitude of character properties, including those needed for supporting bidirectional text. The two standards do use slightly different terminology.

paragraph_text: ISO 22000 is a standard developed by the International Organization for Standardization dealing with food safety. It is a general derivative of ISO 9000.

paragraph_text: ISO 3166-2:AT is the entry for Austria in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

paragraph_text: ISO 3166-2:IT is the entry for Italy in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

paragraph_text: ISO 3166-2:BM is the entry for Bermuda in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

paragraph_text: ISO 3166-2:BB is the entry for Barbados in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

paragraph_text: ISO 3166-2:IS is the entry for Iceland in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

paragraph_text: ISO 3166-2:CG is the entry for the Republic of the Congo (called simply "Congo" in the standard) in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

paragraph_text: ISO 3166-2:ET is the entry for Ethiopia in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

Question: What is the headquarters for the organization who sets the standards for ISO 21500?
Answer: Geneva