McMahon Act
E23840
The McMahon Act is a landmark 1946 U.S. law that established civilian control over nuclear energy and restricted the sharing of atomic information, laying the foundation for American nuclear policy during the early Cold War.
Aliases (1)
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
United States federal law
→
atomic energy legislation → nuclear energy law → |
| appliesTo |
nuclear materials production information
→
nuclear reactor technology information → nuclear weapons design information → |
| chamberOfOrigin |
United States Senate
→
|
| classificationSystem |
formerly restricted data
→
restricted data → |
| codifiedIn |
Public Law 79-585
→
|
| country |
United States of America
→
|
| createdAgency |
United States Atomic Energy Commission
→
|
| dateEnacted |
1946-08-01
→
|
| effect |
limited nuclear cooperation with Canada
→
limited nuclear cooperation with the United Kingdom → |
| era |
early Cold War
→
|
| established |
civilian control of nuclear energy in the United States
→
|
| governs |
development of nuclear weapons in the United States
→
peacetime use of atomic energy in the United States → |
| historicalSignificance |
foundation of early U.S. nuclear policy
→
shifted control of atomic energy from the military to civilians → |
| introducedConcept |
restricted data (U.S. nuclear information classification)
→
|
| jurisdiction |
federal government of the United States
→
|
| legislativeBody |
United States Congress
→
|
| locationOfSigning |
Washington, D.C.
→
|
| namedAfter |
Brien McMahon
→
|
| objective |
ensure national security in the control of atomic energy
→
promote civilian oversight of nuclear technology → |
| officialName |
Atomic Energy Act of 1946
→
|
| policyArea |
defense policy
→
nuclear nonproliferation → science and technology policy → |
| relatedTo |
Atomic Energy Act of 1954
→
Manhattan Project → U.S.–UK nuclear relations → United States Atomic Energy Commission → |
| replaced |
wartime military control of atomic energy in the United States
→
|
| restricted |
dissemination of restricted data
→
sharing of atomic information with foreign countries → |
| signedBy |
Harry S. Truman
→
|
| sponsor |
Brien McMahon
→
|
| subjectMatter |
atomic weapons
→
control of atomic information → national security → nuclear energy → |
| supersededBy |
Atomic Energy Act of 1954
→
|
| yearEnacted |
1946
→
|
Referenced by (3)
| Subject (surface form when different) | Predicate |
|---|---|
|
Public Law 79-585
→
|
alsoKnownAs |
|
Public Law 79-585
("McMahon Act amendments")
→
|
amendedBy |
|
Atomic Energy Act of 1946
→
|
shortName |