1987 Constitution of the Philippines
Section 2.
The civil service embraces all branches, subdivisions, instrumentalities, and agencies of the Government, including government-owned or controlled corporations with original charters.
Appointments in the civil service shall be made only according to merit and fitness to be determined, as far as practicable, and, except to positions which are policy-determining, primarily confidential, or highly technical, by competitive examination.
No officer or employee of the civil service shall be removed or suspended except for cause provided by law.
No officer or employee in the civil service shall engage, directly or indirectly, in any electioneering or partisan political campaign.
The right to self-organization shall not be denied to government employees.
Temporary employees of the Government shall be given such protection as may be provided by law.