<prompt> Translate the following text to EnglishWakati sheria iliyopo kabla ya hapo ilitoa fursa ndogo za uvumbuzi wa posta, Sheria ya Utaratibu wa Posta ya 1970 ilitoa Huduma ya Posta ya Marekani iliyoundwa hivi karibuni na mamlaka ya wazi ya uvumbuzi kwa kuendeleza huduma za ufanisi na ufanisi zilizobadilishwa kwa mahitaji ya watumiaji wa barua ya Taifa.  <response>: While pre-existing law afforded limited opportunities for postal innovation,2 the Postal Reorganization Act of 1970 gave the newly-created United States Postal Service a clear mandate to innovate by developing effective and efficient services adapted to the needs of the Nations mail users. 