In 1976 ESOMAR and the ICC determined a single code of practice would be preferable and the first joint code of practice was published in 1977, with revisions in 1986, 1994 and 2007.
In 1976, ESOMAR and the ICC agreed that a single code of practice would be best, leading to the first joint code being published in 1977. This was followed by revisions in 1986, 1994, and 2007.