ARRL DXCC ENTITY RE-EVALUATION MEMORANDUM – 7O

7O — YEMEN
Evaluation Under 1990 ARRL DXCC Rules

I. PURPOSE

This memorandum evaluates whether 7O — Yemen qualifies as a separate ARRL DXCC Entity under the 1990 DXCC Rules, in the context of the political unification of North Yemen and South Yemen in May 1990.

The evaluation covers:

• Yemen’s sovereign-state status
• UN recognition and membership
• Merger of two previous DXCC entities (7O1—North Yemen; 7O2—South Yemen)
• DXCC succession under merger/deletion rules
• Geographic and special-area rule applicability
• Whether Yemen remains on the DXCC List under 1990 criteria

The modern 7O entity arises from the merger of two previously separate DXCC Entities.

II. BACKGROUND

1. Pre-1990 Political Structure

Before unification, the territory consisted of:

Yemen Arab Republic (North Yemen)

• Capital: Sana’a
• Independent since 1918 (end of Ottoman rule)
• UN member since 1947
• DXCC Entity

People’s Democratic Republic of Yemen (South Yemen)

• Capital: Aden
• Former British Crown Colony (Aden) + Protectorate
• Became independent 1967
• Marxist one-party state
• UN member since 1967
• DXCC Entity

2. Unification

On 22 May 1990, North Yemen and South Yemen united to form the:

Republic of Yemen (Yemen)

• A single sovereign state
• One national government
• One territory
• One internationally recognized legal identity

3. International Recognition

• UN recognition effective immediately
• Both former UN seats replaced by a single Yemeni representation
• Broad bilateral recognition from all major powers

4. DXCC Prefix

• ITU prefix 7O assigned to unified Yemen
• Replacing historical 7O1, 7O2, and colonial-era prefixes under Aden/British rule

5. DXCC History

• Prior to 1990, North Yemen and South Yemen were separate DXCC Entities
• Following merger (per DXCC Rules), the two predecessor entities were deleted, and unified 7O — Yemen was created as their successor

III. ANALYSIS UNDER THE 1990 DXCC RULES

The 1990 DXCC Rules define two main qualification paths:

1. Political Entity Criteria

A region qualifies if it is:

(a) A UN-member sovereign nation
or
(b) A territory administered separately from any other UN member
or
(c) A specially recognized political district (e.g., UN HQ, Vatican, ITU HQ)

2. Geographic Entity Criteria

Not applicable for mainland Yemen (used for islands, separation entities, continental shelf rules).

Yemen qualifies solely under Political Entity Rule 1(a).

1. POLITICAL ENTITY CRITERIA (1990)

1(a) Sovereign Independent Nation — ✔ PASS

• Yemen is a fully sovereign nation recognized internationally.
• Formed through the lawful merger of two former sovereign states.
• Maintains independent foreign and domestic policy.

1(b) UN Membership — ✔ PASS

• Unified Yemen holds a single UN seat.
• Both predecessor UN seats merged.

1(c) Independent National Government — ✔ PASS

• Unitary presidency
• Unified legislature
• Single judiciary
• Control over defense, currency, and international relations

1(d) Territorial Identity — ✔ PASS

• Territory is the combined landmass of the former North and South Yemen
• No competing sovereignty claims preventing DXCC recognition
• Borders recognized internationally

1(e) DXCC Merger/Succession Rule — ✔ PASS

DXCC 1990 rules state that when:

“Two or more existing DXCC Entities merge to form a single sovereign state, the predecessor entities are deleted and replaced by the successor state.”

This applies perfectly to Yemen.

Conclusion:
Yemen satisfies all Political Entity criteria under the 1990 Rules.

2. GEOGRAPHIC ENTITY CRITERIA (1990)

NOT APPLICABLE

Mainland Yemen’s DXCC qualification is purely political.
(Geographic separation rules would apply only to specific offshore islands, e.g., Socotra, if political separation existed — it does not.)

3. SPECIAL-AREA CRITERIA (1990)

Not applicable; Yemen is not:

• A UN Headquarters district
• A multinational treaty territory
• A special administrative zone under international law

4. 1990 DELETION CRITERIA — NOT TRIGGERED

Deletion requires:

Loss of political distinctiveness
Absorption into another sovereign entity
Misclassification or error

None apply:

• Yemen’s political distinctiveness remains
• No absorption by another state
• DXCC recognition aligned with international law and UN status

Predecessor Entities (North and South Yemen) were properly deleted upon unification.

V. FINAL DETERMINATION

✅ 7O — YEMEN qualifies as an ARRL DXCC Entity under the 1990 DXCC Rules.

Qualification Basis (1990):

✔ Fully sovereign, UN-member state
✔ Formed by the merger of two former sovereign DXCC Entities
✔ Immediate international diplomatic recognition
✔ Meets Rule 1(a) Political Entity criteria
✔ Predecessor DXCC entities deleted in accordance with DXCC merger rules

Conclusion:
Under the 1990 ARRL DXCC Rules, Yemen is unquestionably a valid Political DXCC Entity, formed legally by unification and recognized internationally.

VI. SUMMARY TABLE

Rule (1990)	Pass/Fail	Notes
Sovereign Country	✔ PASS	Unified Republic of Yemen (1990)
UN Member State	✔ PASS	Single merged UN seat
Independent Government	✔ PASS	Unified national administration
Territorial Identity	✔ PASS	Combined territory of both Yemens
Geographic Criteria	N/A	Land-based entity
Deletion Criteria	Not Triggered	Entity continues; predecessors deleted
Final Status	VALID ENTITY (1990)	Political sovereign entity

References

ARRL DXCC Rules, editions current through 1990
Clinton B. DeSoto, W1CBD, “How to Count Countries Worked, A New DX Scoring System,” QST, October 1935
ARRL DXCC Country Lists, late-1980s and early-1990s editions
Historical records of the unification of the Yemen Arab Republic and the People’s Democratic Republic of Yemen (1990)
DXCC precedent involving political unification and successor states