The proceedings document presentations at the First Combined FGD and Dry SOb2s Control Symposium, in St. Louis, MO, October 25 - 28, 1988. The objective of the symposium was the exchange of technical and regulatory information on sulfur oxide control technology, including wet and dry scrubbers, emerging processes, and international developments in clean coal/acid rain technologies. Topics covered during the symposium included: retrofit economics, spray dryer technology, furnace sorbent injection topics (demonstration results, byproducts utilization, enhancements), wet FGD operation, municipal solid waste facilities, and post-combustion dry technologies. Also included were concurrent sessions on special topics of interest, including dry FGD, new technologies, and FGD improvement. The proceedings, published in three volumes, include 85 papers and 4 unpresented papers.