Several key issues have emerged as pivotal in ongoing efforts to reform TSCA. Progress on these complex issues is central to the success of TSCA reform. On July 21, 2011, ELI convened a panel of experts to examine the central issue of whether and what standard of safety should replace TSCA’s current “unreasonable risk” standard for regulating chemicals. Topics addressed included: hazard/exposure/risk criteria; burden of proof; judicial review of Agency decisions; sensitive populations; cost-benefit analysis; and application of the safety standard to new materials/technologies.