Portal-to-Portal Act of 1947
E7195
The Portal-to-Portal Act of 1947 is a U.S. federal law that clarified and limited employers’ liability for compensating workers’ preliminary and postliminary activities under the Fair Labor Standards Act.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Portal-to-Portal Act of 1947 canonical | 3 |
| Portal to Portal Act of 1947 | 1 |
| Portal-to-Portal Act | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T85140 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Portal-to-Portal Act of 1947 Context triple: [Fair Labor Standards Act, relatedTo, Portal-to-Portal Act of 1947]
-
A.
Merchant Marine Act of 1936
The Merchant Marine Act of 1936 is a U.S. federal law that established policies and programs to develop and maintain a strong American merchant marine for commerce and national defense.
-
B.
Federal-Aid Highway Act of 1956
The Federal-Aid Highway Act of 1956 was landmark U.S. legislation that created the Interstate Highway System, dramatically expanding and modernizing the nation’s road infrastructure.
-
C.
Department of Transportation Act
The Department of Transportation Act is the U.S. federal law enacted in 1966 that created the United States Department of Transportation to coordinate and oversee national transportation policies and programs.
-
D.
Smoot–Hawley Tariff Act
The Smoot–Hawley Tariff Act was a 1930 U.S. law that sharply raised import duties, widely blamed for worsening international trade tensions and deepening the Great Depression.
-
E.
Public Law 86-209
Public Law 86-209 is a United States federal statute that established the National Medal of Science as a presidential award recognizing outstanding contributions to scientific knowledge.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Portal-to-Portal Act of 1947 Target entity description: The Portal-to-Portal Act of 1947 is a U.S. federal law that clarified and limited employers’ liability for compensating workers’ preliminary and postliminary activities under the Fair Labor Standards Act.
-
A.
Merchant Marine Act of 1936
The Merchant Marine Act of 1936 is a U.S. federal law that established policies and programs to develop and maintain a strong American merchant marine for commerce and national defense.
-
B.
Federal-Aid Highway Act of 1956
The Federal-Aid Highway Act of 1956 was landmark U.S. legislation that created the Interstate Highway System, dramatically expanding and modernizing the nation’s road infrastructure.
-
C.
Department of Transportation Act
The Department of Transportation Act is the U.S. federal law enacted in 1966 that created the United States Department of Transportation to coordinate and oversee national transportation policies and programs.
-
D.
Smoot–Hawley Tariff Act
The Smoot–Hawley Tariff Act was a 1930 U.S. law that sharply raised import duties, widely blamed for worsening international trade tensions and deepening the Great Depression.
-
E.
Public Law 86-209
Public Law 86-209 is a United States federal statute that established the National Medal of Science as a presidential award recognizing outstanding contributions to scientific knowledge.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
United States federal statute
ⓘ
labor law ⓘ |
| amends |
Fair Labor Standards Act of 1938
ⓘ
linked to:
Fair Labor Standards Act
|
| appliesTo |
Fair Labor Standards Act minimum wage provisions
ⓘ
Fair Labor Standards Act overtime provisions ⓘ
linked to:
Fair Labor Standards Act
|
| citation | 61 Stat. 84 ⓘ |
| clarifies | what constitutes hours worked under the Fair Labor Standards Act ⓘ |
| codifiedIn | 29 U.S.C. §§ 251–262 ⓘ |
| contains |
congressional findings and policy in 29 U.S.C. § 251
ⓘ
defenses based on good faith reliance in 29 U.S.C. § 259 ⓘ limitations on employer liability in 29 U.S.C. § 252 ⓘ provisions on compromise and waiver of claims in 29 U.S.C. § 253 ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| defines |
postliminary activities
ⓘ
preliminary activities ⓘ |
| effectiveDate | 1947-05-14 ⓘ |
| enactedBy | 80th United States Congress ⓘ |
| exception |
preliminary or postliminary activities made compensable by contract
ⓘ
preliminary or postliminary activities made compensable by custom or practice ⓘ |
| excludesFromCompensation |
activities that are postliminary to the principal activity or activities of employment
ⓘ
activities that are preliminary to the principal activity or activities of employment ⓘ |
| influencedBy | Supreme Court decisions expanding compensable work time under the Fair Labor Standards Act ⓘ |
| legislativeContext | enacted in response to expansive judicial interpretations of compensable work time under the Fair Labor Standards Act ⓘ |
| limits | employer liability for certain past wage and hour claims ⓘ |
| partOf | United States labor law ⓘ |
| policyGoal |
to protect interstate commerce from burdens caused by unexpected retroactive wage liabilities
ⓘ
to provide certainty to employers regarding compensable work activities ⓘ |
| provides |
a statute of limitations for certain wage and hour actions
ⓘ
defenses for employers against certain Fair Labor Standards Act claims ⓘ |
| publicLawNumber | Public Law 80-49 ⓘ |
| purpose |
to clarify employer liability for compensating certain employee activities under the Fair Labor Standards Act
ⓘ
to limit liability for claims based on preliminary and postliminary activities ⓘ to restrict retroactive wage and hour liability under the Fair Labor Standards Act ⓘ |
| regulates |
compensation for time spent on postliminary activities
ⓘ
compensation for time spent on preliminary activities ⓘ |
| relatedTo |
Portal-to-portal pay
ⓘ
compensable work time ⓘ wage and hour litigation ⓘ |
| shortName |
Portal-to-Portal Act
ⓘ
linked to:
Portal-to-Portal Act of 1947
|
| signedBy |
Harry S. Truman
ⓘ
linked to:
President Harry S. Truman
|
| signingDate | 1947-05-14 ⓘ |
| statuteOfLimitations |
2 years for non-willful violations
ⓘ
3 years for willful violations ⓘ |
| subjectMatter |
employee compensation for time worked
ⓘ
employer liability for wages ⓘ federal wage and hour standards ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Portal-to-Portal Act of 1947 Description of subject: The Portal-to-Portal Act of 1947 is a U.S. federal law that clarified and limited employers’ liability for compensating workers’ preliminary and postliminary activities under the Fair Labor Standards Act.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Portal-to-Portal Act of 1947
linked to: Portal-to-Portal Act of 1947