2.  No person may be transferred as herein authorized until the Commission shall have certified to the officer making the transfer requisition that the person whom it is proposed to transfer has passed an examination to test fitness for the place to which he is to be transferred, and that such person has during at least six months preceding the date of the certificate been in the classified service of the Department, customs district, or post-office from which the transfer is to be made:  Provided, That no person who has been appointed from the copyist register shall be transferred to a place the salary of which is more than $900 per annum until one year after appointment.

  DEPARTMENTAL RULE IX.

  1.  A person appointed from the copyist register may, upon any test of
  fitness determined upon by the promoting officer, be promoted as
  follows: 

  (a) At any time after probational appointment, to any place the
  salary of which is not more than $900 per annum.

(b) At any time after one year from the date of probational appointment, upon certification by the Commission that he has passed the clerk examination or its equivalent, to any place the salary of which is $1,000 per annum or more.

  (c) At any time after two years from the date of probational
  appointment, to any place the salary of which is $1,000 per annum or
  more.

2.  A person appointed from the clerk register or from any supplementary or special register to a place the salary of which is $1,000 per annum or more may, upon any test of fitness determined upon by the promoting officer, be promoted at any time after absolute appointment.

3.  A person appointed from the clerk register or from any supplementary or special register to a place the salary of which is $900 or less may, upon any test of fitness determined upon by the promoting officer, be promoted at any time after probational appointment to any place the salary of which is $1,000 per annum.

  4.  Other promotions may be made upon any tests of fitness determined
  upon by the promoting officer.

5.  The provisions of clauses 1, 2, 3, and 4 of this rule shall become null and void in any part of the classified departmental service as soon as promotion regulations shall have been applied thereto under General Rule III, clause 6.

  DEPARTMENTAL RULE X.

Upon requisition of the head of a Department the Commission shall certify for reinstatement in said Department, in a grade requiring no higher examination than the one in which he was formerly employed, any person who within one year next preceding the date of the requisition has, through no delinquency or misconduct, been separated from the classified service of that Department.

  DEPARTMENTAL RULE XI.