International Sugar Agreements and Quota Regimes (1930–1975)

1. Chadbourne Plan proposes voluntary sugar curbs

   May 1, 1931Labels: Thomas L, Voluntary plan

   • TIME
   • Chadbourne

2. International Sugar Agreement signed in London

   May 6, 1937Labels: International Sugar, London

   • US Historian
   • US Historian

3. Quota-based system scheduled to begin

   Sep 1, 1937Labels: Quota years, Provisional Council

   • US Historian

4. U.S. ratifies participation in 1937 agreement

   Mar 22, 1938Labels: United States, Senate ratification

   • US Historian

5. Wartime protocol extends the 1937 agreement

   Jul 22, 1942Labels: Wartime protocol, World War

   • US Historian
   • ISA Overview

6. Additional protocol extends term and weakens quotas

   Aug 31, 1944Labels: Additional protocol, Quota weakening

   • ISA Overview
   • US Historian

7. Annual extensions keep 1937 regime alive

   Jun 26, 1951Labels: Annual extensions, Postwar

   • Cambridge IO
   • ISA Overview

8. New International Sugar Agreement concluded in London

   Oct 1, 1953Labels: 1953 Agreement, London

   • Treaty DB
   • PH E Library

9. Protocol amends the 1953 agreement and quotas

   Dec 1, 1956Labels: 1953 protocol, Quota adjustment

   • Treaty DB
   • EconBiz

10. International Sugar Agreement of 1958 signed

    Dec 1, 1958Labels: 1958 Agreement, London

    • PH E Library
    • Treaty DB

11. Protocol prolongs the 1958 agreement through 1965

    Aug 1, 1963Labels: 1963 protocol, 1958 extension

    • US Historian
    • ISA Overview

12. UN Sugar Conference adopts 1968 agreement

    Oct 24, 1968Labels: UN Sugar, 1968 Agreement

    • PH E Library
    • UIA

13. 1968 agreement enters into force provisionally

    Jan 1, 1969Labels: Provisional entry, 1969

    • PH E Library

14. International Sugar Organization established under 1968 framework

    Dec 3, 1969Labels: International Sugar, London

    • UIA
    • ISO Page