Introduction
The United Nations Secretariat is one of the six principal organs of the United Nations. It is the administrative and operational machinery of the UN and performs the day-to-day work necessary for carrying out the purposes and decisions of the organisation.
- Introduction
- Legal Basis
- Composition of the Secretariat
- Secretary-General
- Secretary-General as Chief Administrative Officer
- Functions under Article 98
- Article 99 – Independent Political Role
- Article 100 – Independence of Secretariat
- Article 101 – Appointment of Staff
- International Civil Servants
- Principle of International Character
- Functions of the UN Secretariat
- Departments and Offices
- Secretary-General and Peacekeeping
- Secretary-General and Mediation
- Secretary-General and Preventive Diplomacy
- Secretariat and General Assembly
- Secretariat and Security Council
- Secretariat and ECOSOC
- Secretariat and Trusteeship Council
- Secretariat and International Organisations
- Secretary-General’s Good Offices
- Special Representatives and Envoys
- Appointment of the Secretary-General
- Removal of the Secretary-General
- Qualifications of Secretariat Staff
- Privileges and Immunities
- UN Secretariat and Legal Personality
- Accountability of Secretariat Officials
- Neutrality and Independence
- Secretariat as an International Civil Service
- Importance of Article 99
- Secretariat and UN Collective Security
- Limitations of the Secretariat
- Important Cases and Authorities
- UN Secretariat vs Secretary-General
- UN Secretariat vs General Assembly
- UN Secretariat vs Security Council
- Quick Revision
- One-Line Memory Trick
- Conclusion
The Secretariat is headed by the Secretary-General, who is the chief administrative officer of the United Nations.
Its work covers a very wide range of activities, including:
- peace and security;
- mediation and preventive diplomacy;
- human rights;
- economic and social affairs;
- humanitarian assistance;
- international law;
- administration and finance;
- coordination of UN programmes and operations.
The Secretariat is therefore not simply an office for clerical work. It performs important political, diplomatic, legal, administrative and operational functions.
Legal Basis
The principal Charter provisions concerning the Secretariat are contained in Chapter XV of the UN Charter.
Important provisions include:
- Article 97 – establishes the Secretariat and provides for the Secretary-General.
- Article 98 – sets out the Secretary-General’s functions.
- Article 99 – gives the Secretary-General authority to bring matters threatening international peace and security to the attention of the Security Council.
- Article 100 – establishes the independence of the Secretary-General and Secretariat personnel.
- Article 101 – deals with appointment of staff and conditions of service.
Therefore:
Chapter XV → Articles 97–101 → UN Secretariat
Composition of the Secretariat
The Secretariat consists of:
Secretary-General
Under-Secretaries-General
Assistant Secretaries-General
International civil servants and other personnel
The Secretariat operates through numerous departments, offices and specialised units.
Secretary-General
The Secretary-General is the head of the Secretariat.
Article 97 provides that the Secretary-General is appointed by the General Assembly upon the recommendation of the Security Council.
This means both organs have a role:
Security Council → Recommendation
↓
General Assembly → Appointment
The permanent members of the Security Council therefore have substantial influence over the selection process.
Secretary-General as Chief Administrative Officer
Article 97 describes the Secretary-General as the “chief administrative officer” of the organisation.
However, the practical role of the office extends significantly beyond ordinary administration.
The Secretary-General also performs:
- diplomatic functions;
- political functions;
- preventive diplomacy;
- mediation;
- good offices;
- reporting;
- coordination;
- representation of the UN.
Thus, the Secretary-General has both an administrative role and an important international political role.
Functions under Article 98
Article 98 provides that the Secretary-General:
- acts in that capacity in all meetings of the General Assembly, Security Council, Economic and Social Council and Trusteeship Council;
- performs other functions entrusted to him by those organs;
- makes an annual report to the General Assembly on the work of the organisation.
Therefore, the Secretary-General acts as an important link between the different organs of the UN.
Article 99 – Independent Political Role
Article 99 is one of the most important provisions concerning the Secretary-General.
It provides that the Secretary-General may bring to the attention of the Security Council any matter which, in his opinion, may threaten the maintenance of international peace and security.
This provision gives the Secretary-General an important political and preventive-diplomacy function.
The significance is that the Secretary-General does not always have to wait for a Member State or another UN organ to raise an issue.
The Secretary-General can independently draw the Security Council’s attention to a matter.
Article 99 Flowchart
Situation develops
↓
Secretary-General considers it a threat to peace and security
↓
Secretary-General brings it to Security Council’s attention
↓
Security Council considers appropriate action
Article 100 – Independence of Secretariat
Article 100 is fundamental to the international character of the Secretariat.
The Secretary-General and Secretariat staff must not:
- seek or receive instructions from any government or outside authority;
- act in a manner incompatible with their international responsibilities.
Member States must also respect the exclusively international character of these responsibilities.
This establishes the principle of international civil service independence.
Article 101 – Appointment of Staff
Article 101 deals with appointment of Secretariat staff.
The staff are appointed by the Secretary-General under regulations established by the General Assembly.
The paramount consideration in employment is:
Efficiency + Competence + Integrity
The Charter also requires due regard to the importance of recruiting staff on as wide a geographical basis as possible.
International Civil Servants
Secretariat personnel are international civil servants.
They do not act as representatives of their individual States.
For example:
Indian national working for UN Secretariat
≠
Representative of India
The individual owes professional responsibilities to the United Nations, not to the government of the State of nationality.
Principle of International Character
The international character of the Secretariat is essential to the functioning of the UN.
A Secretariat controlled directly by individual governments would undermine the independence and effectiveness of the organisation.
Therefore:
National nationality
↓
International appointment
↓
International responsibilities
Functions of the UN Secretariat
The Secretariat performs several major functions.
Administrative Functions
It provides administrative support to the UN’s principal organs and numerous programmes and operations.
This includes:
- meetings;
- documentation;
- records;
- personnel;
- budgeting support;
- logistics;
- communication.
Political Functions
The Secretariat supports international political processes involving:
- conflict prevention;
- mediation;
- peace negotiations;
- political missions;
- preventive diplomacy.
Peace and Security Functions
The Secretariat supports:
- Security Council activities;
- peacekeeping operations;
- political missions;
- sanctions implementation support;
- conflict prevention.
Diplomatic Functions
The Secretary-General can act as:
- mediator;
- facilitator;
- intermediary;
- provider of good offices.
The office can therefore assist States and other parties in resolving international disputes.
Humanitarian Functions
The Secretariat works with the wider UN system on:
- humanitarian crises;
- displacement;
- emergency response;
- disaster situations;
- humanitarian coordination.
Human Rights Functions
The Secretariat supports UN human-rights mechanisms and activities.
The Office of the High Commissioner for Human Rights (OHCHR) is part of the UN Secretariat.
International Law Functions
The Secretariat also plays an important role in the development and codification of international law.
The Office of Legal Affairs (OLA) provides legal services to the UN.
The International Law Commission (ILC), while not itself a Secretariat department, is a subsidiary body established by the General Assembly and works closely within the UN institutional framework.
Departments and Offices
The Secretariat contains numerous departments and offices dealing with different areas.
Important examples include:
Department of Political and Peacebuilding Affairs
Works on:
- conflict prevention;
- mediation;
- peacebuilding;
- political missions.
Department of Peace Operations
Provides support for:
- UN peacekeeping operations;
- military and police components;
- mission planning;
- operational coordination.
Office of Legal Affairs
Provides legal advice and services to the UN and its organs.
It is important in:
- interpretation of Charter provisions;
- treaty matters;
- institutional legal questions;
- international legal affairs.
Office for the Coordination of Humanitarian Affairs
Known as OCHA, it supports coordination of humanitarian responses.
Office of the High Commissioner for Human Rights
Known as OHCHR, it supports the UN human-rights system.
Secretary-General and Peacekeeping
The Secretary-General plays an important role in UN peacekeeping.
The Secretary-General may:
- recommend or facilitate missions;
- appoint mission leadership;
- oversee Secretariat support;
- report to the Security Council;
- engage politically with parties;
- conduct diplomacy.
However, the Secretary-General does not possess unlimited independent authority to deploy UN forces.
Peacekeeping mandates generally depend upon decisions of the competent UN organs, particularly the Security Council.
Secretary-General and Mediation
The Secretary-General frequently uses:
- good offices;
- mediation;
- preventive diplomacy;
- special envoys.
The purpose is to prevent disputes from escalating into armed conflict or to help parties reach political settlements.
Secretary-General and Preventive Diplomacy
Preventive diplomacy means diplomatic efforts designed to prevent:
- disputes from arising;
- disputes from escalating;
- existing conflicts from becoming more violent.
Article 99 provides an important constitutional basis for the Secretary-General’s independent role in this field.
Secretariat and General Assembly
The Secretariat provides administrative and substantive support to the General Assembly.
It assists with:
- preparation of documents;
- meetings;
- reports;
- interpretation and translation;
- implementation of decisions;
- institutional coordination.
The Secretary-General also submits an annual report to the General Assembly under Article 98.
Secretariat and Security Council
The Secretariat provides extensive support to the Security Council.
It assists with:
- Council meetings;
- documentation;
- briefings;
- reporting;
- sanctions-related work;
- peacekeeping;
- political missions.
The Secretary-General can also use Article 99 to bring matters to the Council’s attention.
Secretariat and ECOSOC
The Secretariat provides administrative and substantive support to the Economic and Social Council and its subsidiary bodies.
Its work includes areas such as:
- economic development;
- social development;
- sustainable development;
- statistics;
- international cooperation.
Secretariat and Trusteeship Council
The Secretariat historically supported the Trusteeship Council in carrying out its functions.
Because the Trusteeship Council suspended its regular operations after completion of the Trusteeship System, this role is now largely historical.
Secretariat and International Organisations
The Secretariat coordinates with:
- specialised agencies;
- UN funds and programmes;
- regional organisations;
- international financial institutions;
- civil society organisations.
The objective is to coordinate international efforts within the broader UN system.
Secretary-General’s Good Offices
One of the most important practical functions of the Secretary-General is the use of good offices.
The Secretary-General may:
- establish communication between parties;
- facilitate negotiations;
- appoint representatives or special envoys;
- encourage peaceful settlement.
This does not normally give the Secretary-General power to impose a binding settlement.
Special Representatives and Envoys
The Secretary-General may appoint:
- Special Representatives;
- Special Envoys;
- Personal Representatives;
- other high-level representatives.
They may be assigned to particular conflicts, regions or political processes.
They act within mandates established by the UN framework.
Appointment of the Secretary-General
The appointment process under Article 97 is:
Security Council recommends candidate
↓
General Assembly appoints Secretary-General
The Charter does not itself specify a fixed term.
In practice, the Secretary-General traditionally serves a five-year term, which may be renewed.
Removal of the Secretary-General
The Charter does not contain a detailed express procedure specifically titled “removal of the Secretary-General.”
In practice, the appointment and renewal process is strongly dependent upon Security Council and General Assembly action.
Because the Security Council recommendation is required, the permanent members have significant practical influence.
Qualifications of Secretariat Staff
Article 101 emphasises:
- efficiency;
- competence;
- integrity.
The Charter also calls for consideration of wide geographical representation.
Thus recruitment seeks to balance:
Merit
Integrity
Competence
Geographical diversity
Privileges and Immunities
UN Secretariat officials enjoy privileges and immunities necessary for the independent performance of their functions.
The principal legal framework includes:
- Convention on the Privileges and Immunities of the United Nations, 1946;
- applicable host-State arrangements;
- relevant international law.
The purpose of immunity is generally functional, not personal privilege for its own sake.

UN Secretariat and Legal Personality
The Secretariat forms part of the United Nations, which possesses international legal personality.
The ICJ recognised the international legal personality of the UN in:
Reparation for Injuries Suffered in the Service of the United Nations (1949)
The Court recognised that the United Nations possesses international legal personality and the capacity necessary to perform its functions.
This provides the broader legal foundation within which the Secretariat operates.
Accountability of Secretariat Officials
International civil servants are subject to:
- UN Staff Regulations;
- Staff Rules;
- administrative procedures;
- internal justice mechanisms;
- applicable codes of conduct.
The international character of their position does not mean that they are beyond institutional accountability.
Neutrality and Independence
The Secretariat must maintain an institutional distinction from national governments.
For example:
State Government
→ Represents national interests
UN Secretariat
→ Serves the interests and purposes of the United Nations
This distinction is essential for the credibility of the organisation.
Secretariat as an International Civil Service
The Secretariat can therefore be understood as an international civil service.
Its personnel are expected to:
- act independently;
- maintain professional integrity;
- avoid political instructions from governments;
- serve the purposes of the UN.
This distinguishes the Secretariat from a traditional national bureaucracy.
Importance of Article 99
Article 99 is particularly significant because it demonstrates that the Secretary-General is not merely an administrative employee.
It gives the office an element of independent political initiative.
The Secretary-General can identify a situation that, in his or her opinion, threatens international peace and security and bring it before the Security Council.
Thus:
Article 97 → Chief administrative officer
Article 98 → Functions and annual report
Article 99 → Independent attention to threats to peace
Article 100 → Independence
Article 101 → Staff
Secretariat and UN Collective Security
The Secretariat supports the wider UN collective-security system.
Security Council
↓
Mandate / Decision
↓
Secretariat
↓
Implementation + Coordination + Reporting
↓
Peacekeeping / Political / Humanitarian Action
The Secretariat therefore provides much of the institutional machinery necessary to translate decisions into practical operations.
Limitations of the Secretariat
The Secretariat does not possess unlimited independent authority.
Dependence on Member States
The organisation depends on Member States for:
- financial contributions;
- personnel;
- political support;
- cooperation.
Charter Limitations
The Secretariat must operate within the powers granted by the Charter and relevant decisions of UN organs.
Political Constraints
The Secretary-General must often work within competing interests of Member States, especially major powers.
Security Council Constraints
On matters involving international peace and security, the Secretary-General cannot simply substitute his or her judgment for the authority of the Security Council.
Administrative Constraints
Large-scale UN operations involve:
- complex bureaucracy;
- financial limitations;
- coordination difficulties.
Important Cases and Authorities
Reparation for Injuries (1949)
Important for the international legal personality of the UN.
Certain Expenses of the United Nations (1962)
Important for understanding:
- powers of UN organs;
- institutional expenditure;
- implied powers.
Namibia Advisory Opinion (1971)
Important for understanding the legal consequences of UN decisions and the role of UN organs.
UN Secretariat vs Secretary-General
These terms should not be confused.
| UN Secretariat | Secretary-General |
|---|---|
| Principal organ of the UN | Head of the Secretariat |
| Large administrative and operational body | Individual office-holder |
| Includes departments and staff | Leads and represents Secretariat |
| Performs institutional functions | Exercises functions under Articles 97–99 |
| Permanent UN organ | Appointed for a term |
UN Secretariat vs General Assembly
| Secretariat | General Assembly |
|---|---|
| Administrative and operational organ | Deliberative and representative organ |
| Headed by Secretary-General | Composed of all UN Members |
| Implements/supports UN work | Makes recommendations and decisions within Charter powers |
| Article 97–101 | Articles 9–22 |
| International civil service | Political organ representing Member States |
UN Secretariat vs Security Council
| Secretariat | Security Council |
|---|---|
| Administrative/operational body | Principal peace and security organ |
| Headed by Secretary-General | 15 members |
| Supports Council decisions | Makes decisions within Charter powers |
| Article 97–101 | Chapters V, VI, VII |
| Secretary-General may draw attention under Article 99 | Has primary responsibility under Article 24 |
Quick Revision
- The UN Secretariat is one of the six principal organs of the United Nations.
- It is established under Chapter XV.
- Articles 97–101 are the key provisions.
- The Secretariat is headed by the Secretary-General.
- Article 97 → Secretary-General appointed by General Assembly on Security Council recommendation.
- Article 97 → Secretary-General is the chief administrative officer.
- Article 98 → Secretary-General performs functions entrusted by UN organs and submits an annual report.
- Article 99 → Secretary-General can bring threats to international peace and security to the attention of the Security Council.
- Article 100 → independence of the Secretary-General and Secretariat staff.
- Article 101 → appointment and conditions of service of Secretariat staff.
- Secretariat personnel are international civil servants.
- The Secretariat performs administrative, political, diplomatic, legal, humanitarian and operational functions.
- It supports the General Assembly, Security Council, ECOSOC and other UN bodies.
- It plays an important role in peacekeeping and preventive diplomacy.
- The Secretary-General can use good offices and mediation.
- The Secretariat includes departments such as:
- Department of Political and Peacebuilding Affairs;
- Department of Peace Operations;
- Office of Legal Affairs;
- OCHA;
- OHCHR.
- UN officials enjoy functional privileges and immunities under applicable legal instruments.
- Reparation for Injuries (1949) is important for the UN’s international legal personality.
- The Secretariat is not the same as the Secretary-General.
- The Secretary-General is the head of the Secretariat.
- Article 99 demonstrates that the Secretary-General has an important political role in addition to administration.
- The Secretariat cannot act independently of the UN Charter and the authority of competent UN organs.
One-Line Memory Trick
“97–101 = Secretariat”
97 → Secretary-General
98 → Functions + Annual Report
99 → Threat to Peace
100 → Independence
101 → Staff
For the appointment:
Security Council → Recommendation
↓
General Assembly → Appointment
For the institutional role:
Secretariat = Administration + Diplomacy + Coordination + Operations
Conclusion
The UN Secretariat is the administrative and operational backbone of the United Nations. Established under Chapter XV, it performs the continuous work necessary for the functioning of the organisation and its various organs.
The Secretary-General, appointed by the General Assembly upon the recommendation of the Security Council, leads the Secretariat. Although formally described as the chief administrative officer, the Secretary-General has developed an important political and diplomatic role, particularly through good offices, mediation, preventive diplomacy and Article 99.
The independence of the Secretariat is protected by Article 100, while Article 101 establishes the framework for the appointment and service of international civil servants.
For examination purposes, the most important provisions are:
Article 97 → Secretary-General
Article 98 → Functions
Article 99 → Power to bring threats to peace before Security Council
Article 100 → Independence
Article 101 → Staff
Thus, the Secretariat should be understood not merely as an administrative office, but as a permanent international civil service that provides the institutional, diplomatic, legal and operational machinery through which the United Nations carries out its purposes.
