Rep. Tom McMillen proposed yesterday that a congressionally mandated deadline for the destruction of the nation's aging mustard agent -- including that stored at Aberdeen Proving Ground -- be extended from 2000 to at least 2010 by linking it to a pending disposal agreement by the International Convention on Chemical Weapons.
His bill would require study of alternative disposal technologies.
A controversial incinerator at Aberdeen, where 5 percent of the overall stockpile is stored, is scheduled for construction in 1995. Only mustard agent, a liquid blistering substance, would be burned there.
Faster-killing nerve agents, mostly in munitions, would be destroyed at seven other sites in the nation as part of the Army's $7.9 billion chemical demilitarization program.