The board hereby promulgates its general policy concerning communications to and from the Industrial Accident Board.(1) The carrier shall send a copy of all written communications relating to a pending claim before the board to the claimant, or if claimant is represented by counsel, directly to his attorney and to the board. Without limiting the generality of the foregoing, the term "written communications" shall include board approved Form A-1, A-2, A-4, and A-2 Lump Sum Transmittal Letter, Statements of Controversion, and Notices of Intention to Appeal.(2) The attorney representing the claimant shall send a copy of all written communications relating to a pending claim before the board to the insurance carrier and to the board. Without limiting the generality of the foregoing, the term "written communication" shall include written claim for compensation, affidavit of hardship, power of attorney, notice of appeal.