(1) Employees of the department, for purposes of making old or faded records suitable for microfilming or photocopying may:

(a) trace those parts of the record that are too dim to be microfilmed;

(b) retype the record on a separate form and microfilm the retyped copy; or

(c) copy the original vital record and trace those parts of the record that are too dim to be microfilmed.

(2) If (1) (b) or (c) are employed, the original record must be retained for reference purposes.

(3) In no case may the department or any of its employees change the substance or contents of any vital record.

(4) If the original vital record is illegible and the substance or content cannot definitely be determined, illegible portions must not be retraced, and, if retyped, the copy shall indicate those portions of the original that were illegible.