(2) If the elector registration records of a county are mechanically maintained, the county clerk may satisfy the requirements of subsection (1) of this section by maintaining for two years:
(a) Computer listings of electors to whom the clerk issued notices or any other correspondence under ORS 247.195, 247.292, 247.296, 247.563 and 247.570 and facsimile copies of notices and correspondence; or
(b) Microfilm records of the listings and copies. [1963 c.346 §5; 1975 c.766 §3; 1979 c.190 §61; 1981 c.173 §18; 1985 c.808 §8b; 1993 c.713 §26; 1999 c.410 §20]