(1) Prior to the commencement of an on-site election, the board agent shall designate the polling area, and no electioneering of any kind shall be permitted within this area. Any violation of this rule by any party or its representative or agent may be grounds for setting aside the election.

(2) Each party to the election is entitled to be represented by an equal number of observers at each polling place.

(3) The failure or refusal of one party to send an observer to a polling place does not infringe on the right of another party to send an observer to that place.

(4) Observers shall be employees eligible to vote, or in the case of employer's observers, shall be any appropriate persons who are not on the list of eligible voters. Each party may observe the ballot counting.