Do not investigate the accuracy of, or reasons for, changes to immaterial items (e.g., city
of birth). If the correction does not concern the DB, is obvious and easily explainable, and does not raise doubt as to whether the document pertains to the claimant, it may be considered
In such cases, treat the BC as if the correction had been made at the time the original
record was recorded, and ignore the fact that the original record was altered.