uency or
misconduct, shall be placed at the head of the proper register in the
order of their fulfillment of said requirements.

4. The term of eligibility shall be one year from the date on which the
name of the eligible is entered upon the register.

RULE VIII.

In pursuance of the provisions of section 2 of the civil-service
act, whenever a vacancy occurs in any position which has been or may
hereafter be classified under the civil-service act, and which is not
an excepted position, the filling of said vacancy, unless filled through
noncompetitive examination or by reinstatement, transfer, promotion, or
reduction, shall be governed as follows:

1. The appointing or nominating officer shall request certification
to him of the names of eligibles for the position vacant, and the
Commission shall certify to said officer from the proper register
the three names at the head thereof which have not been three times
certified to the Department or office in which the vacancy exists:
_Provided_, That certification for temporary appointment shall not
be counted as one of the three certifications to which an eligible is
entitled: _And provided further_, That whenever the sex of those
whose names are to be certified is fixed by any law, rule, or regulation
or is specified in the request for certification the names of those of
the sex so fixed or specified shall be certified, but in other cases
certification shall be made without regard to sex.

2. Of the three names certified the nominating or appointing officer
shall select one, and if at the time of selection there are more
vacancies than one he may select more than one name, unless otherwise
directed by the Commission.

3. If an eligible who is not entitled to certification is certified and
appointed, his appointment shall be immediately revoked by the
appointing officer upon notification from the Commission.

4. A person selected for appointment shall be notified of his selection
by the appointing or nominating officer, and upon his acceptance shall
receive from the appointing officer a certificate of appointment for a
probationary period of six months, at the end of which period, if the
conduct and capacity of the probationer are satisfactory to the
appointing officer, his retention in the service shall be equivalent to
his absolute appointment; but if his conduct or capacity be not
satisfac