Title VII of the Civil Rights Act, which is the federal law governing discrimination in the workplace, prohibits discrimination on the basis of, among other things, national origin and race. Under the EEOC regulations relating to Title VII, an employer cannot impose an absolute prohibition against speaking a foreign language in the workplace. The employer can have a rule requiring the speaking of only English at certain times where the employer can show that the rule is justified by business necessity. Here is a link to that EEOC regulation: http://www.law.cornell.edu/cfr/text/29/1606.7 The state in which you work may also have a state law which affords the same, or greater protection.
Answered on Jan 31st, 2014 at 3:56 PM