HHS is extending until October 31, 2011 the comment period on two proposed rules published July 15, 2011 to implement provisions of the Affordable Care Act. The first rule would implement the ACA’s "Affordable Insurance Exchanges," which are state-based health insurance markets for individuals and small employers. The second proposed rule would implement standards for states related to reinsurance and risk adjustment, and for health insurance issuers related to reinsurance, risk corridors, and risk adjustment under the ACA. The comment period for both rules originally was scheduled to end on September 28, 2011. An official notice will be published in the Federal Register on September 30.