On December 15, 2011, the filing window for service providers to file annual hearing aid compatibility (HAC) reports  opens. The reports can be filed between December 15, 2011 and January 17, 2012. This current filing window is only for service providers. The filing window for device manufacturers opens on June 15th of each year.
Under the FCC's rules, providers of digital mobile wireless services and manufacturers of wireless handsets must file annual reports on their offering of handsets that are compatible with hearing aids. These reports contain information about the hearing aid compatibility status of each handset offered, functionalities of hearing aid-compatible handsets, labeling of hearing aid-compatible handsets, and the filing company's consumer outreach efforts.
Current reports as well as prior reports can be viewed at the hearing aid compatibility page .