Sec.  64.4006   Limitations on use of customer account information.

   A carrier that receives customer account information under this section
   shall  use such information to ensure timely and accurate billing of a
   customer's  account  and  to ensure timely and accurate execution of a
   customer's preferred interexchange carrier instructions. Such information
   shall not be used for marketing purposes without the express consent of the
   customer.

Subpart DD—Prepaid Calling Card Providers

   Source:    71 FR 43673 , Aug. 2, 2006, unless otherwise noted.