ARRL DX Century Club (DXCC) Rules — 1947 Edition (Comments)

Purpose

To encourage confirmed two-way amateur radio communication with at least 100 different “countries” of the world, as recognized by the ARRL Awards Committee.

Rule 1 – Definition of a Country

A country (now called an entity) was defined as:

“Any area of the world, other than the continental United States and its possessions, which possesses a distinct and different government, or which is physically separated from other such areas by a significant distance of water.”

Key implications:

Political distinctness was the primary criterion.
Geographical separation was secondary — usually ≥ 100 miles (160 km) of open water.
U.S. territories and possessions (Hawaii, Alaska, Puerto Rico, Canal Zone, etc.) were considered separate countries.
Colonies (e.g. British Honduras, French Morocco) generally qualified separately if under different administration.

Rule 2 – Eligibility

Open to all licensed amateur radio operators anywhere in the world.
Confirmations had to be made after November 15, 1945 (post-war resumption of international operation).
Contacts could be made on any amateur band or mode authorized at the time.

Rule 3 – Confirmation of Contacts

QSL cards were required for each country claimed.
Each card had to show the callsign, date, time, band, and mode.
All cards were to be personally checked by ARRL Headquarters staff or an official ARRL Field Representative.
Duplicate QSOs with the same country did not count.

Rule 4 – Award Qualification

Applicants who submitted verified QSLs confirming two-way contacts with 100 or more countries would receive:
- The DX Century Club Certificate, and
- The right to use the “DXCC” suffix after their call sign in correspondence (e.g. W1ABC DXCC).
Endorsements were offered for additional totals (e.g. 125, 150, 175, etc.), though this was formalized more fully later.

Rule 5 – Definition of Possessions and Protectorates

A possession or protectorate administered separately by a different government from the “parent” was considered a separate country.
Examples (1947 list): Alaska (KL7), Hawaii (KH6), Puerto Rico (KP4), Canal Zone (KZ5), Guam (KG6), etc.
U.S. mainland 48 states were treated as one country.

Rule 6 – Protests and Changes

“The ARRL Awards Committee reserves the right to add or delete countries from the DXCC List as political changes may occur or as additional information becomes available.”

This clause later evolved into the “DXCC Rules Committee” mechanism for entity additions/deletions.

Rule 7 – Certificates and Publication

Successful applicants’ names and totals were published in QST and the ARRL DXCC List; certificates were mailed without fee to ARRL members in good standing.

Rule 8 – General Provisions

Operation must conform to all local licensing and radio-communication laws.
All contacts must be legitimate amateur-to-amateur QSOs.
Cross-band, maritime mobile, or experimental contacts did not count.
The ARRL’s decision was final.

Geopolitical Context of the 1947 DXCC List

The first DXCC List (1947) contained 231 entities, including:

Major powers (U.S.A., U.K., France, USSR, China (Nanking), etc.)
Colonies and territories counted separately (e.g. Aden, Basutoland, Gold Coast, Indo-China, Ceylon, French Somaliland)
Special cases like SMOM (1A0) and Vatican City (HV) already appeared as distinct political entities.
The distance criterion was primitive and pre-dated the later “Rule 1C” (Offshore Island Rule) which came into effect in the 1950s–60s.

Summary Table

Aspect	1947 Rule
Political Distinction	Separate government = separate country
Geographic Separation	“Significant water distance,” ~100 miles typical
Parent–Possession Rule	Separate administration ⇒ separate entity
Minimum Count	100 confirmed countries
QSL Verification	Physical cards checked by ARRL
Time Limit	Contacts after Nov 15 1945
Appeals	ARRL Awards Committee final
Offshore Island Rule	Not yet formally codified (pre-Rule 1C)

Historical Significance

The 1947 DXCC Rules established:

The foundational political–geographical dual test,
The concept of entity continuity tied to government or administrative change,
The practice of list revision by the ARRL Awards Committee, and
The baseline from which later offshore, separation, and “distinct administration” rules (1A, 1B, 1C) evolved in later editions (1952, 1955, 1960, 1963 etc.).