(a) A separate weather modification permit shall be required annually on a calendar year basis for each weather modification project or program.

(b) The director may grant a weather modification permit on an emergency basis without prior publication of any required notice in instances of fire, frost, hail, sleet, smog, fog, drought or other natural cause creating an emergency condition. In such situations, publication of notice shall be made as soon as possible but shall not be subject to the time limits specified elsewhere in this act.