Registering with CMS's PECOS system has had its share of headaches, but CMS has made a few more improvements. For instance, you can now submit your entire enrollment application online -- gone are the days of having to mail copies of supporting documentation And you can now enter more than one contact person in the PECOS "contact information" section. Plus, the "geographic location" section of the enrollment application will now allow you to enter a county designation. For more on the PECOS system, visit https://pecos.cms.hhs.gov/pecos/login.do.