The California Department of Corrections and Rehabilitation (CDCR) encourages correspondence between inmates and persons outside the correctional facility. The sending and receiving of mail by inmates shall be uninhibited except as specifically provided for in this article. The Regulations contained in this article shall provide for the orderly processing of inmate mail and to give direction to staff, inmates, and their correspondents concerning facility mail requirements. Mail shall be delivered to inmates, regardless of housing, unless it is contraband pursuant to section 3006, or is disturbing or Offensive Correspondence pursuant to section 3135.