Open Internet Preservation Act This bill prohibits broadband internet access service providers from (1) blocking lawful content, applications, services, or non-harmful devices; or (2) throttling lawful internet traffic on the basis of internet content, application, or service, or use of a non-harmful device. Providers may offer specialized services, which operate over the same network and share network capacity with the broadband internet access service, so long as such service offerings do not threaten the availability of broadband internet access service or evade the purposes of the bill.