On November 9, 2009, Australia announced the availability of a public discussion paper proposing to strengthen regulation of industrial nanomaterials used in Australia. The National Industrial Chemicals Notification and Assessment Scheme (NICNAS) developed the proposal in conjunction with its Nanotechnology Advisory Group, which includes representatives from industry, the community, and research sectors. Major regulatory reforms would include:  refinement of pre-market assessment categories for nanoforms of new chemicals, particularly where human health or environmental exposure can reasonably be anticipated; and a mandatory notification and assessment program for nanoforms of existing chemicals. The discussion paper contains a questionnaire and survey intended to encourage written submissions. Comments are due December 23, 2009.