(1) Orders, directives and other measures of the administrative authority are brought to the attention of the person to whom the measure refers without formal service thereof. If a legal remedy subject to a time limit is admissible in respect of the measure, it is brought to such person's attention in a notice to be served.
(2) On issuance of such notice by the administrative authority as may be contested by legal remedy subject to a time limit, the person to whom the measure refers is informed of the possibility of contesting the notice, as well as of the time-limit and the form stipulated therefor.