Designation of parties

In issuing the notice of hearing the board or the division, as the case may be, will designate as parties those persons known to them whose legal rights, duties or privileges are being determined in the contested case and any person whose participation as a party is then deemed necessary to the proper disposition of such proceeding.
All other persons proposing to be named or admitted as parties shall apply for such designation in the manner hereinafter described. No other person shall be or have standing before the division as a party within the definition of Section 4-166 (8), C.G.S.