Frequently asked questions

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  1. What is Sister Cities International?
  2. What are the benefits of membership with Sister Cities International?
  3. How do I become a member of Sister Cities International?
  4. What is a sister city, county, prefectur, province, or state?
  5. Why should I have a sister city?
  6. How do I find a sister city?
  7. What do sister cities do?
  8. What makes a successful sister city program?
  9. May I have more than one sister city?
  10. Where do I find funding for my sister city program?
  11. Does Sister Cities International offer any conferences or meetings?
  12. Why am I not receiving my sister city mailings?
  13. What is the Sister Cities International Annual Awards Program?
  14. What is the Sister Cities International Young Artist Competition?
  15. Are there other organizations around the world that are involved with sister city programs?
  16. Is Taiwan a part of China?
  17. When is a cooperative agreement necessary?
What is Sister Cities International?

Sister Cities International is the international membership association headquartered in Washington, DC. As the official organization which links jurisdictions from the United States with communities worldwide, Sister Cities International recognizes, registers, and coordinates sister city, county, municipalities, oblasts, prefectures, provinces, regions, state, town, and village linkages. Currently, Sister Cities International represents over 2,500 communities in 126 countries around the world.

The U.S. sister city program originated in 1956 when President Dwight D. Eisenhower proposed a people-to-people, citizen diplomacy initiative. Originally a part of the National League of Cities, Sister Cities International became a separate, nonprofit corporation in 1967, due to the tremendous growth and popularity of the U.S. program.

Sister Cities International creates and strengthens these sister city partnerships in an effort to increase global cooperation, promote cultural understanding, and stimulate economic development. Sister Cities International leads the movement for local community development and volunteer action, by motivating and empowering private citizens, municipal officials, and business leaders to conduct long-term programs of mutual benefit.

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What are the benefits of membership with Sister Cities International?

Membership with Sister Cities International is the best way for you and your community to establish meaningful and lasting global connections. Sister Cities International opens numerous doors to the world, enriching your community through educational exchanges, business development opportunities, and information sharing on issues such as healthcare and the environment. Through Sister Cities International, local citizens gain a sense of pride from being involved in solutions to global challenges and from learning about, and connecting with, people from other cultures.

Sister Cities International is an excellent way for your community to establish close relations with one or more international communities. These partnerships allow your community to creatively learn, work and solve problems through cultural, educational, municipal, business, professional and technical exchanges and projects.

As an official member of Sister Cities International, your community will be entitled to many benefits. Some of these benefits include:
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How do I become a member of Sister Cities International?

It's simple! Just fill out our online application.

Sister Cities International welcomes U.S. cities, counties, states, territories, towns, and villages, as well as associations, businesses, corporations, educational institutions, embassies, municipalities, and individuals to join the Sister Cities International network. We also encourage international cities, counties, municipalities, oblasts, prefectures, provinces, regions, and states to join. All international communities may join under provision that they already have a U.S. sister city and they are able to show proof (a signed partnership agreement) of that relationship. The U.S. community does not have to be a member of Sister Cities International in order for an international community to join. Anyone can become an individual member. Please click for membership benefits.

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What is a sister city, county or state?

When a community of any size decides to join with a community in another nation to learn more about one another, and to develop friendly meaningful exchanges, the two communities propose a formal affiliation leading to official designation as "sister cities". A sister city, county, municipality, oblast, prefecture, province, region, state, territory, town, or village relationship becomes official with the signing of a formal agreement by the top elected officials of the two jurisdictions. This is usually done during a ceremony in one of the communities, following approval by the local city councils (county commissions or state legislatures), as appropriate. Therefore, a sister city, county, oblast, prefecture, province, region, state, territory, town, or village relationship is a broad-based, officially approved, long-term partnership between two communities. Partnerships have the potential to perform the widest possible diversity of activities of any international program, including every type of municipal, business, professional, educational, and cultural exchange or project. Sister city programs are also unique in that they inherently involve three main sectors in a community: local government, businesses, and a wide variety of citizen volunteers (including civil society or nonprofit organizations). Sister city partnerships have the potential to perform the widest possible diversity of activities of any international program, including every type of municipal, business, professional, educational, and cultural exchange or project.

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Why should I have a sister city?

As the world becomes smaller, communities and individuals are facing opportunities and challenges that increasingly require a global perspective. They are realizing the importance of forming international partnerships that foster economic development, cross-cultural exchange, and global cooperation. Sister Cities International is the leading citizen diplomacy organization geared toward helping communities seize the opportunities and overcome the challenges of this new global era.

A sister city program enables the citizens of both communities to become directly involved in international relations in unique and rewarding exchanges, which benefits all those involved. It enables all who participate to: Return to questions

How do I find a sister city?

Communities find each other in a plethora of ways. Sometimes it is a top-down process, where two mayors meet then involve the rest of their community. Other times, it is a bottom-up process where a group or individual in the community, an educator, a businessperson, a service club or an ethnic association, takes the lead and organizes a sister city committee, then requests that their elected leaders form an official partnership. Some communities link because they share the same name or celebrate the same famous festival. Charming odd coincidences or chance meetings sometimes lead to a sister cities affiliation.

Sister Cities International also acts as a matchmaker, utilizing its "Cities Seeking Cities" section of the website which enables communities to "meet" one another by reviewing online profiles. All communities, both U.S. and international, must complete a "Request for a Sister City" form in order to participate in this online service. Click here to go to How to Find a Sister City How to Find a Sister City with the attached "Request for a Sister City" form. Remember, your partnership will not be considered official, nor will you have access to our resources and benefits, unless you are a member. So join the Sister Cities International network as soon as possible!

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What do sister cities do?

Sister city programs inherently involve a unique kind of partnership and involvement of the three main sectors of a vibrant, productive community: local government; business; and private voluntary sectors (civil society or non-profit organizations and individual citizen volunteers). Sister city programs, perhaps more than any other international program, involve the widest possible diversity of exchanges and projects. Basically, anything that goes on in a community can become - and has, in one city or another - the subject of a sister city project, including healthcare, environment, arts, education, economic and business development, public safety, municipal training, youth, and much more.

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What makes a successful sister cities program?

Commitment, creativity, cooperation, and communication are at the heart of all successful sister city programs. Also, the following elements must be present: solid support and involvement from all sectors of society, including city hall and grassroots citizens groups; a broad-based sister city committee; additional alliances (such as Rotary or Lions); excellent communication links; sensitivity to cultural differences; clear objectives; regular exchanges; and a willingness to take risks.

Variety and innovation is key. Projects can include everything from municipal training and community problem solving, to exchanges of media managers, thematic youth exchanges, or professional internships focused on volunteerism, aging, healthcare, public safety, the environment, and more.

All sister city programs should ensure that each project reflects the diversity of the Sister Cities International network. Specifically, it should promote the inclusion of ethnic and racial minorities, people with disabilities, youth, women, and people of varied socio-economic backgrounds in all sister city activities.

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May I have more than one sister city?

Yes. Sister Cities International encourages communities to consider linking with partners in different countries in order to expose your community and citizens to a diversity of cultural experiences. U.S. communities may also have more than one sister city within any given country. However, having more than one sister city should only occur if your community feels that it has the necessary resources to support multiple affiliations.

On the other hand, many existing sister city partnerships feel that the strength and stability of sister city relationships depends greatly on the uniqueness of a one-to-one partnership. So weigh your options carefully, and choose whichever works best for your community.

For further information, please see our affiliation policies.

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Where do I find funding for my sister cities program?

Sister Cities International offers funds through federal, corporate, and foundation grants. See the fundraising section (login required) for more information. The Sister Cities Network for Sustainable Development (SCND) also provides seed grants to members.

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Does Sister Cities International offer any conferences or meetings?

Sister Cities International organizes an Annual Conference for all prospective and current members to help build and strengthen your sister city programs. The Sister Cities International Annual Conference, held in a different U.S. city each year in July, is your opportunity to learn from, and network with, hundreds of other dedicated sister city volunteers, elected officials, professionals, and international colleagues. The conferences are practical, hands-on, and highly interactive. Click here for information on this year's conference.

State Coordinators, volunteers from each state, also hold state meetings. These meetings are held either annually or bi-annually. To find out more about meetings in your state, please contact your State Coordinator.

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Why am I not receiving my sister city mailings?

Mailings (of quarterly newsletters and bi-monthly e-newsletters) are dependent upon two factors: 1) if your community is a member of Sister Cities International and 2) whether you are registered with Sister Cities International. Only member communities receive newsletter mailings, and members, as well as friends, of Sister Cities International are eligible for receiving the e-newsletter.
If your community is a member of Sister Cities International, or if you would like to receive our e-newsletter, please fill out our individual profile. If you need assistance with this, please contact our webmaster.

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What is the Sister Cities International Annual Awards Program?

Established in 1962, the Sister Cities International Annual Awards Program recognizes the most outstanding and innovative sister city programs from around the country. The program honors excellence in four categories: Best Overall Program, Innovation, Volunteer and Disability Awareness. Only members of Sister Cities International are eligible to enter the competition, and they are honored during the Sister Cities International Annual Conferences. For more details, see the Annual Awards section of our website.

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What is the Sister Cities International Young Artist Competition?

The Sister Cities International Showcase of Young Artists is in its 17th year of recognizing outstanding original youth (ages 13-18) artwork from around the world. Open to all members of Sister Cities International and their international counterparts, winners receive a cash award, and have their art displayed during the Sister Cities International Annual Conference. For more details, see the Young Artist section of our website.

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Are there other organizations around the world that are involved with sister city programs?

Yes. Sister Cities International is one of a number of international organizations that utilizes the concept of town twinning to foster deeper cross-cultural understanding and global cooperation towards sustainable economic and community development. There are organizations around the world which handle sister city links much in the way that Sister Cities International does, such as the Australian Sister Cities Association and the New Zealand Sister Cities Association.

Many twinning offices and staff are housed within municipal associations, such as the Council of European Municipalities and Regions (CEMR) and the Korea Local Authorities Foundation for International Relations (KLAFIR).

In addition, various terms are used to describe a long-term partnership between two communities: sister cities (United States, Mexico), twin cities (Russia, United Kingdom), friendship cities (as with relations between Japanese and Chinese cities), partnerstadt (Germany), and jumelage (France). However, all denote the same concept of partnered communities, or "sister cities."

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Is Taiwan a part of China?

The global diplomatic community determines "who" is a country by looking to the diplomatic protocals set out by their governments. Sister Cities International follows the guidelines of the U.S. Department of State. A country is only recognized as being independent after the U.S. Department of State recognizes it as such. The formal basis for Taiwan, as provided by the U.S. Department of State, maintains that:

"The U.S. has had no diplomatic relations with Taiwan since 1979.  But based on the Taiwan Relations Act of that same year, we are legally obliged to maintain unofficial relations with the people on the island.  We formally acknowledge Beijing's claim of sovereignty over Taiwan, but we neither accept nor reject the claim, nor do we define Taiwan in a political sense, except to say that its status should be worked out peacefully, to the satisfaction of people on both sides of the Taiwan Strait.  We use the term 'Taiwan' to refer to the island, as this is a geographic designator only."

For further information, please see our affiliation policies.

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When is a cooperative agreement necessary?

Sister Cities International will recognize a new sister cities partnership between a U.S. and an international community, even though another partnership may exist between that international community and a different U.S. community, only if a cooperative agreement among all involved communities is filed with Sister Cities International.

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