
(seated left to right) John N. Dillenburg, ADSC WCC Executive Director; Richard S. Terrill, OSHA
Region X Regional Administrator; Michael Kennedy, ADSC WCC President; and (standing left to right)
Bob Birdsall, Co-Chairman WCC Safety Committee; W. Walter Lang, USDOL Office of the Secretary; Dale
R. Cavanaugh, OSHA Region X Assistant Regional Administrator; Colin Perkins, Co-Chairman WCC Safety
Committee and David L. Mahlum, OSHA Region X Assistant Regional Administrator after the Alliance
signing ceremony.
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