(a) The name of every competitor who has, under section 1754 of the Revised Statutes, claim of preference in civil appointments, and who has attained a general average of not less than 65 per cent; and all such competitors are hereby declared eligible to the class or place to test fitness for which the examination was held.

(b) The name of every other competitor who has attained a general average of not less than 70 per cent; and all such applicants are hereby declared eligible to the class or place to test fitness for which the examination was held.

4.  The names of all preference-claiming competitors whose general average is not less than 65 per cent, together with the names of all other competitors whose general average is not less than 70 per cent, shall be entered upon the register of persons eligible to the class or place to test fitness for which the examination was held.  The names of male and of female eligibles shall be listed separately.

5.  The grade of each competitor shall be expressed by the whole number nearest the general average attained by him, and the grade of each eligible shall be noted upon the register of eligibles in connection with his name.  When two or more eligibles are of the same grade, preference in certification shall be determined by the order in which their application papers were filed.

  6.  Immediately after the general averages in an examination shall have
  been ascertained each competitor shall be notified that he has passed or
  has failed to pass.

7.  If a competitor fail to pass, he may, with the consent of the board, approved by the Commission, be allowed reexamination at any time within six months from the date of failure without filing a new application; but a competitor failing to pass, desiring to take again the same examination, must, if not allowed reexamination within six months from the date of failure, make in due form a new application therefor.

8.  No person who has passed an examination shall while eligible on the register Supplied by such examination be reexamined, unless he shall furnish evidence satisfactory to the Commission that at the time of his examination he was, because of illness or for other good cause, incapable of doing himself justice in said examination.

  9.  The term of eligibility to appointment in the classified customs
  service shall be one year from the day on which the name of the eligible
  is entered on the register.

  CUSTOMS RULE IV.

  1.  Vacancies in the lowest class or grade of the classified service of a
  customs district shall be filled in the following manner: