The Tongass Timber Reform Act, which affected logging operations in the nation's largest national forest, was signed into law by President George H. W. Bush in 1990. First introduced by Mrazek in 1986, the proposed law was the subject of several years of contentious debate between its author and members of the Alaska Congressional delegation, including Representative Don Young (R-AK). After being defeated in a House vote on a Mrazek amendment in 1990, Young allegedly "went berserk," tracked Mrazek down in a House corridor and threatened him with a knife. Mrazek's landmark conservation law revoked the artificially high timber cutting targets, protecting over of Tongass's old-growth forest and watershed acreage, and mandated broad buffers for all salmon and resident fishing streams.