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International Chiropractors Association

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A professional association representing chiropractors and providing education, advocacy, and specialty programs.

Last updated October 14, 2026

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Overview

The International Chiropractors Association (ICA) is a United States-based professional association for chiropractors, with individual members and professional activities extending beyond the United States. It was founded in 1926 in Davenport, Iowa, by B. J. Palmer, a major early figure in the development of chiropractic. Palmer led the organization as president until his death in 1961. The ICA operates as a membership and advocacy organization rather than as a consumer-facing healthcare brand. Its activities include representing chiropractic interests, supporting professional education, organizing conferences, and maintaining councils focused on particular areas of chiropractic practice and philosophy. The association offers continuing-education programs for doctors of chiropractic, with courses that may qualify for continuing-education credit under applicable state licensing systems. The organization has several councils and specialist programs. These have included councils concerned with fitness and sports health science, chiropractic pediatrics, applied chiropractic science, chiropractic philosophy, wellness science, and upper-cervical care. The fitness and sports body, previously known as the ICA Sports Council, was a charter member of the International Federation of Sports Chiropractic. Through these structures, the ICA promotes professional networking, specialty education, and credentialing or diplomate-oriented study. In the United States, the ICA and the American Chiropractic Association are identified as national chiropractic associations representing the country within the World Federation of Chiropractic. The ICA has representation on that federation's executive council. Although its principal institutional base is American, the association describes itself as international through its overseas individual membership and its participation in international professional structures. Publicly available membership comparisons have generally placed the ICA below the American Chiropractic Association in size, with estimates based on dues paid by member associations to the World Federation of Chiropractic rather than on a directly published comprehensive membership count. The ICA has also participated in policy and government-related discussions. In 2002, Michael S. McLean, then a member of the ICA board of directors, represented the association on the United States Department of Veterans Affairs Chiropractic Advisory Committee. The organization has historically advocated for the recognition and expansion of chiropractic practice and for the profession's institutional representation. The ICA has attracted criticism over its relationship with vaccine-skeptical and anti-vaccination material. Its stated support for the National Vaccine Information Center, as well as vaccine-related presentations and film screenings at events associated with its councils, has led critics to connect the association with claims about vaccines that are rejected by mainstream medical and scientific institutions. These controversies form an important part of the public discussion surrounding the association, although they are distinct from its core activities in professional membership, education, and advocacy. During the 1980s, an effort was made to encourage members of the American Chiropractic Association to join the ICA. The proposed consolidation was associated with the goals of uniting the profession's United States representation and freeing the name “International Chiropractors Association” for a new organization that could represent chiropractic internationally. The effort did not succeed. In 1987, representatives reached a consensus in London to establish the World Federation of Chiropractic instead, leaving the ICA and the American Chiropractic Association as separate United States associations. The ICA remains an active professional body with a global membership orientation, continuing-education offerings, councils, conferences, and policy involvement.

History

The International Chiropractors Association was established in 1926 in Davenport, Iowa, by B. J. Palmer. Palmer was a central figure in early chiropractic history and remained the association's president until his death in 1961. From its beginning, the ICA functioned as a professional body intended to organize chiropractors, promote chiropractic principles, and provide a collective voice for the profession. The association developed an international orientation despite being based in the United States. It accepts individual members from different countries and participates in international chiropractic structures. In the United States, it is one of the two principal national chiropractic associations identified as representing the country within the World Federation of Chiropractic, alongside the American Chiropractic Association. The ICA also holds representation on the World Federation of Chiropractic executive council. Available comparisons have indicated that its membership is substantially smaller than that of the American Chiropractic Association, although externally published figures are generally estimates derived from association dues rather than a complete public membership register. Education became a significant part of the ICA's operating model. The association provides continuing-education courses for doctors of chiropractic, including programs that can be used for continuing-education units where recognized by state licensing authorities. It also organized specialist activity through councils covering areas such as sports and fitness health science, chiropractic pediatrics, applied chiropractic science, chiropractic philosophy, wellness science, and upper-cervical care. The sports council, before adopting its later name, was a charter member of the International Federation of Sports Chiropractic. These councils have supported conferences, professional development, and specialty-oriented diplomate programs. The ICA has periodically participated in public policy and government discussions. In 2002, Michael S. McLean, an ICA board member, represented the association on the United States Department of Veterans Affairs Chiropractic Advisory Committee. This involvement reflected the association's broader interest in the recognition of chiropractic services and the profession's role in public healthcare systems. The relationship between the ICA and the other major United States chiropractic association became especially significant in the 1980s. A campaign sought to persuade American Chiropractic Association members to join the ICA. The proposed change was intended to create a unified national voice and potentially make the “International Chiropractors Association” name available for a new organization representing chiropractic internationally. The initiative failed to produce a merger. At a 1987 meeting in London, the profession reached a consensus to create the World Federation of Chiropractic, rather than consolidating the two United States associations. The ICA consequently continued as a separate organization. In the twenty-first century, the association has remained active in professional education, conferences, specialty councils, and advocacy. It has also faced public criticism over vaccine-related positions and programming. The ICA has supported the National Vaccine Information Center, an organization criticized for disseminating misleading vaccine claims. Conferences connected with the ICA and its Council on Chiropractic Pediatrics have included presentations by people associated with vaccine-skeptical films and, in 2016, a screening of VAXXED. These activities have led commentators to characterize the association as aligned with anti-vaccination advocacy. The controversy is part of the association's public record and has affected how its professional and policy positions are evaluated, while the ICA continues to present itself primarily as a chiropractic membership and education organization.

  • 2002

    Veterans Affairs advisory representation

    [1]

    ICA board member Michael S. McLean represented the association on the United States Department of Veterans Affairs Chiropractic Advisory Committee.

  • 1987

    World Federation of Chiropractic consensus

    [1]

    After an unsuccessful effort to unite the major United States chiropractic associations, representatives agreed in London to create the World Federation of Chiropractic.

  • 1961

    End of B. J. Palmer's presidency

    [1]

    B. J. Palmer, who had served as president since the association's founding, died and ended his long leadership of the ICA.

  • 1926

    Association founded in Davenport

    [1]

    B. J. Palmer founded the International Chiropractors Association in Davenport, Iowa.

Products and positioning

A traditional, internationally oriented chiropractic professional association emphasizing practitioner membership, continuing education, specialty councils, professional advocacy, and representation in international chiropractic organizations.

  • Professional education

    Continuing education programs

    The ICA provides continuing-education courses for doctors of chiropractic. These programs are designed to support professional development and may qualify for continuing-education units under the rules of relevant state licensing boards.

  • Professional specialization

    Specialty council programs

    The association's councils address fields including fitness and sports health science, chiropractic pediatrics, applied chiropractic science, chiropractic philosophy, wellness science, and upper-cervical care. Council activity includes education, conferences, and diplomate-oriented programs.

  • Membership · 1926

    Professional membership

    ICA membership is available to chiropractors and supports professional networking, association participation, advocacy, and access to educational and council activities. The association has individual members in multiple countries.

Controversies

  • 2018

    Vaccines Revealed presentation

    Beau Pierce, a co-producer of Vaccines Revealed, hosted a related session at an ICA annual conference. The programming drew criticism because the film series has been characterized as anti-vaccination propaganda.

  • 2017

    Vaccine-skeptical conference programming

    Jeff Hays, associated with Vaccines Revealed, was invited to host a session at an ICA Council on Chiropractic Pediatrics conference. Critics cited the invitation as evidence of the association's support for vaccine misinformation.

  • 2016

    Criticism over VAXXED screening

    A conference sponsored by the ICA Council on Chiropractic Pediatrics screened VAXXED, a film criticized for promoting discredited claims about vaccines. The event contributed to scrutiny of the association's vaccine-related activities.

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Marketing campaigns

  • 1980Campaign to consolidate United States chiropractic representation

    United States

    An effort encouraged members of the American Chiropractic Association to join the ICA, with the stated goals of creating a unified national voice and facilitating a separate international representative organization.

    Outcome. The consolidation effort failed. A broader professional consensus later supported the creation of the World Federation of Chiropractic in 1987.

Brand decisions

  • 1987

    Continue as a separate national associationStrategy

    Background

    An earlier campaign sought to combine the ICA with the American Chiropractic Association and reorganize representation of the profession.

    Action taken

    The proposed consolidation did not proceed. The profession instead moved toward establishing the World Federation of Chiropractic as an international body.

    Aftermath

    The ICA remained a separate United States chiropractic association while participating in the World Federation of Chiropractic alongside the American Chiropractic Association.

    • American Chiropractic Association — The American Chiropractic Association remained a separate national association after the consolidation effort failed.

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