29 CFR 1605.3 - Selection practices.
(a) Scheduling of tests or other selection procedures. When a test or other selection procedure is scheduled at a time when an employee or prospective employee cannot attend because of his or her religious practices, the user of the test should be aware that the principles enunciated in these guidelines apply and that it has an obligation to accommodate such employee or prospective employee unless undue hardship would result.
(b) Inquiries which determine an applicant's availability to work during an employer's scheduled working hours. (1) The duty to accommodate pertains to prospective employees as well as current employees. Consequently, an employer may not permit an applicant's need for a religious accommodation to affect in any way its decision whether to hire the applicant unless it can demonstrate that it cannot reasonably accommodate the applicant's religious practices without undue hardship.
(2) As a result of the oral and written testimony submitted at the Commission's Hearings on Religious Discrimination, discussions with representatives of organizations interested in the issue of religious discrimination, and the comments received from the public on these Guidelines as proposed, the Commission has concluded that the use of pre-selection inquiries which determine an applicant's availability has an exclusionary effect on the employment opportunities of persons with certain religious practices. The use of such inquiries will, therefore, be considered to violate title VII unless the employer can show that it:
(i) Did not have an exclusionary effect on its employees or prospective employees needing an accommodation for the same religious practices; or
(ii) Was otherwise justified by business necessity.
(3) The Commission will infer that the need for an accommodation discriminatorily influenced a decision to reject an applicant when: (i) prior to an offer of employment the employer makes an inquiry into an applicant's availability without having a business necessity justification; and (ii) after the employer has determined the applicant's need for an accommodation, the employer rejects a qualified applicant. The burden is then on the employer to demonstrate that factors other than the need for an accommodation were the reason for rejecting the qualified applicant, or that a reasonable accommodation without undue hardship was not possible.