On April 15th congressional leaders were busyannouncing legislation to tighten chemical regulatory policy in the U.S.The House of Representatives released a discussion draft of legislationto revise the Toxic Substances Control Act while the Senate released adraft bill to enact changes to the primary chemical control law that hasbeen in effect since 1976. The draft legislation would appear to steeraway from nano-specific regulations but many of the proposed changeswill deeply impact the nanotechnology community. Recent presentations byEPA officials provide a richer understanding of the changes takingplace within the Agency's approach to chemical regulatory policy andmore specifically, where nanomaterials fit into that policy. Read thecolumn athttp://www.nanotech-now.com/columns/?article=437.