"The major ICAS activity for September was sponsorship
of the 17th Annual Interagency Conference on Weather
Modification. The meeting, hosted by NOAA, was held
on 13-15 September at the Sheraton-Fontainebleau Inn,
Ocean City, Md. The General Chairman was Dr. Ronald
L. Lavoie, NOAA. (...)"
in:
Bulletin American Meteorological Society, Vol. 57, No. 11, November 1976 page 1360-61
http://www.worldcat.org/oclc/1021346952
https://journals.ametsoc.org/doi/pdf/10.1175/1520-0477-57.11.1360

ICAS is the acronym for "Interdepartmental Committee for Atmospheric Sciences"