<prompt> Translate the following text to SwahiliThe joint authority shared by the Postal Service and the Postal Rate Commission under the Reorganization Act to adopt new mail classifications is the mechanism for implementing innovations in domestic mail service.  <response>: Mamlaka ya pamoja ya Shirika la Posta na Tume ya Kiwango cha Posta chini ya Sheria ya Utaratibu mpya ya kupitisha uainishaji mpya wa barua ni utaratibu wa kutekeleza ubunifu katika huduma ya barua ya ndani. 