Sufficiently good vision in each eye, with or without glasses, is required to perform the duties satisfactorily. Near vision, glasses permitted, must be sufficient to read printed material the size of typewritten characters. Since the duties of these positions are exacting and responsible, and involve activities under trying conditions, applicants must possess emotional and mental stability. Any physical condition that would cause the applicant to be a hazard to himself, herself, or others is disqualifying. Prior to appointment, the selected applicant must pass a Library of Congress physical examination.
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