Use of the term "chairman" remains widespread in predominantly male sectors of society, but "chairperson" or "chair" is now widespread in society in general, at least in the US, Canada and increasingly in the UK For example, the boards of most Fortune 500 companies in the United States are presided over by a "chairman" and also the overwhelming majority of the (FTSE 100) companies in the United Kingdom have a "chairman", while committees in the United States House of Representatives are presided over by a "chair", as of 2009. Since most of these are, however, men, a more correct description of the current language situation needs to consider use in organisations whose chairperson is a woman. Less than half of the members of the "American Heritage Dictionary"'s usage panel accept the use of the word "chairman" in describing a woman.