(1)    In this section, “local governmental unit” has the meaning given under s. 19.42 (7u).

   (2)   

      (a)    The department shall prescribe, by rule, qualitative standards for optical discs and for copies of documents generated from optical discs used to store materials filed with local governmental units. Prior to submitting any such rule to the legislative council staff under s. 227.15 (1), the department shall refer the rule to the public records board for its recommendations.

      (b)    The department shall prescribe, by rule, qualitative standards for the storage of public records in electronic format and for copies of documents generated from electronically stored materials filed with local governmental units. Prior to submitting any such rule to the legislative council staff under s. 227.15 (1), the department shall refer the rule to the public records board for its recommendations.