tified to appear in their order on the respective records. But any
applicants in the several States and Territories for appointment in the
classified departmental service may be notified to appear for
examination at any place at which an examination is to be held, whether
in any State or Territory or in Washington, which shall be deemed most
convenient for them.

2. The Commission is authorized, in aid of the apportionment among the
States and Territories, to hold examinations at places convenient for
applicants from different States and Territories, or for those
examination districts which it may designate and which the President
shall approve.

3. The Commission may by regulation provide for dropping from any record
the applicants whose names have remained thereon for six months or more
without having been reached in due course for notification to be
examined.

RULE XVI.

1. Whenever any officer having the power of appointment or employment
shall so request, there shall be certified to him by the Commission or
the proper examining board four names for the vacancy specified, to be
taken from those graded highest on the proper register of those in his
branch of the service and remaining eligible, regard being had to any
right of preference and to the apportionment of appointments to States
and Territories; and from the said four a selection shall be made for
the vacancy. But if a person is on both a general and a special register
he need be certified from the former only, at the discretion of the
Commission, until he has remained two months upon the latter.

2. These certifications for the service at Washington shall be made
in such order as to apportion, as nearly as may be practicable, the
original appointments thereto among the States and Territories and the
District of Columbia upon the basis of population as ascertained at
the last preceding census.

3. In case the request for any such certification or any law or
regulation shall call for those of either sex, persons of that sex shall
be certified; otherwise sex shall be disregarded in such certification.

4. No person upon any register shall be certified more than four times
to the same officer in the customs or postal service or more than three
times to any Department at Washington, unless upon request of the
appointing officer; nor shall anyone remain eligible more than one
year