In general, it is assumed that pre-employment requests for information will form the basis for hiring decisions. Therefore, employers should not request information that discloses or tends to disclose an applicant's race unless it has a legitimate business need for such information. If an employer legitimately needs information about its employees' or applicants' race for affirmative action purposes and/or to track applicant flow, it may obtain the necessary information and simultaneously guard against discriminatory selection by using a mechanism, such as "tear-off" sheets. This allows the employer to separate the race-related information from the information used to determine if a person is qualified for the job. Asking for race-related information on the telephone could probably never be justified.