Class 8.—­All persons receiving an annual salary of $1,600 or
  more, or a compensation at the rate of $1,600 or more, but less than
  $1,800 per annum.

  Class 9.—­All persons receiving an annual salary of $1,800 or
  more or a compensation at the rate of $1,800 or more, but less than
  $2,000 per annum.

  Class 10.—­All persons receiving an annual salary of $2,000 or
  more, or a compensation at the rate of $2,000 or more per annum.

  RULE II.

1.  To test fitness for admission to the classified service of the Government Printing Office, examinations of a practical character shall be provided by the Commission.  If the trade or occupation is such that a competitive test can not be made, the Commission shall provide regulations for the registration of applicants without competitive tests.

  2.  Any male citizen of the United States not under 21 or over 45 years
  of age and any female citizen not under 18 or over 35 years of age may
  be examined for positions in the Government Printing Office.

3.  No application for a position in the Government Printing Office which belongs to one of the recognized mechanical trades shall be received from any applicant who has not served at least five years at the particular trade to which the position for which he applies belongs, one year of which service must have been rendered as a journeyman.

  4.  Blank forms of application shall be furnished by the Commission, and
  the date of reception and also of approval by the Commission of each
  application shall be entered on the application paper.

  RULE III.

  1.  The grade or standing of every competitor shall be determined under
  regulations made by the Commission, and each competitor shall be duly
  notified whether or not he is eligible for appointment.

2.  No competitor who has failed to obtain an eligible standing shall be admitted to another test within six months from the date of failure unless he shall furnish satisfactory evidence to the Commission that at the time of his examination he was unable to do himself justice because of illness or other good cause.

3.  No eligible shall be admitted to a test during the period of his eligibility unless he shall furnish satisfactory evidence to the Commission that at the time of his examination he was unable to do himself justice because of illness or other good cause.

4.  All competitors whose claims of preference under section 1754 of the Revised Statutes have been allowed by the Commission who attain a general average of 65 per cent or over, and all other competitors who attain a general average of 70 per cent or over, shall be eligible for appointment to the place for which they were examined.  The names of all competitors thus rendered eligible shall be entered in the order of grade on the proper register of eligibles.

  5.  The Commission shall establish regulations for the order of
  certification of applicants who are registered without competitive
  examinations under the provisions of Rule II, paragraph I.