Prevention of Significant Deterioration program
E31154
The Prevention of Significant Deterioration program is a U.S. air quality permitting system that limits emissions from new or modified major pollution sources in areas that already meet national air quality standards.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Prevention of Significant Deterioration program canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T240926 — 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: Prevention of Significant Deterioration program Context triple: [Clean Air Act, establishes, Prevention of Significant Deterioration program]
-
A.
National Ambient Air Quality Standards
The National Ambient Air Quality Standards are U.S. federal air pollution limits that set maximum allowable concentrations of key pollutants in outdoor air to protect public health and the environment.
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B.
National Pollutant Discharge Elimination System
The National Pollutant Discharge Elimination System is a U.S. regulatory permitting program that controls water pollution by regulating point-source discharges of pollutants into waters of the United States.
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C.
Clean Air Act
The Clean Air Act is a landmark U.S. federal law that regulates air emissions from stationary and mobile sources to protect public health and the environment from air pollution.
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D.
National Air Toxics Assessment
The National Air Toxics Assessment is a nationwide screening tool that estimates health risks from exposure to hazardous air pollutants in the United States.
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E.
Clean Air Action Plan
The Clean Air Action Plan is a comprehensive environmental initiative aimed at reducing air pollution and health impacts from port-related operations at major U.S. seaports.
- 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: Prevention of Significant Deterioration program Target entity description: The Prevention of Significant Deterioration program is a U.S. air quality permitting system that limits emissions from new or modified major pollution sources in areas that already meet national air quality standards.
-
A.
National Ambient Air Quality Standards
The National Ambient Air Quality Standards are U.S. federal air pollution limits that set maximum allowable concentrations of key pollutants in outdoor air to protect public health and the environment.
-
B.
National Pollutant Discharge Elimination System
The National Pollutant Discharge Elimination System is a U.S. regulatory permitting program that controls water pollution by regulating point-source discharges of pollutants into waters of the United States.
-
C.
Clean Air Act
The Clean Air Act is a landmark U.S. federal law that regulates air emissions from stationary and mobile sources to protect public health and the environment from air pollution.
-
D.
National Air Toxics Assessment
The National Air Toxics Assessment is a nationwide screening tool that estimates health risks from exposure to hazardous air pollutants in the United States.
-
E.
Clean Air Action Plan
The Clean Air Action Plan is a comprehensive environmental initiative aimed at reducing air pollution and health impacts from port-related operations at major U.S. seaports.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
United States environmental regulatory program
ⓘ
air quality permitting program ⓘ |
| administeredBy | United States Environmental Protection Agency ⓘ |
| appliesIn |
attainment areas
ⓘ
unclassifiable areas ⓘ |
| appliesTo |
major modifications at existing major stationary sources
ⓘ
new major stationary sources of air pollution ⓘ sources exceeding major source thresholds ⓘ |
| componentOf |
New Source Review
ⓘ
surface form:
New Source Review permitting system
|
| contrastedWith | Nonattainment New Source Review program ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| doesNotApplyIn | nonattainment areas for the pollutant in question ⓘ |
| established | 1977 ⓘ |
| establishedBy |
Clean Air Act
ⓘ
surface form:
Clean Air Act Amendments of 1977
|
| governs |
construction of major emitting facilities
ⓘ
modification of major emitting facilities ⓘ |
| implementedBy |
federal EPA in some jurisdictions
ⓘ
local permitting authorities ⓘ state permitting authorities ⓘ |
| keyConcept |
Best Available Control Technology
ⓘ
baseline air quality ⓘ increment consumption ⓘ significant impact levels ⓘ |
| legalBasis |
Clean Air Act
ⓘ
Clean Air Act ⓘ
surface form:
Clean Air Act Part C
Clean Air Act ⓘ
surface form:
Clean Air Act Title I
|
| monitoredBy |
United States Environmental Protection Agency
ⓘ
surface form:
EPA regional offices
|
| objective | to maintain existing clean air while allowing controlled industrial growth ⓘ |
| protects |
Class I areas
ⓘ
national parks and wilderness areas designated as Class I ⓘ |
| purpose |
to ensure that economic growth occurs in a manner consistent with preservation of clean air resources
ⓘ
to prevent significant deterioration of air quality in clean air areas ⓘ |
| regulates |
air pollutant emissions
ⓘ
criteria air pollutants ⓘ greenhouse gases under certain conditions ⓘ |
| relatedTo |
New Source Review
ⓘ
surface form:
New Source Review program
|
| requires |
Best Available Control Technology analysis
ⓘ
air quality impact analysis ⓘ demonstration that emissions will not cause or contribute to a violation of National Ambient Air Quality Standards ⓘ demonstration that emissions will not exceed PSD increments ⓘ emissions offsets in limited circumstances such as Class I area impacts ⓘ modeling of ambient air quality impacts ⓘ preconstruction permits for covered sources ⓘ protection of Air Quality Related Values in certain areas ⓘ public notice and comment ⓘ |
| sector | environmental regulation ⓘ |
| sets | maximum allowable increases in pollutant concentrations above baseline levels ⓘ |
| shortName | PSD program ⓘ |
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: Prevention of Significant Deterioration program Description of subject: The Prevention of Significant Deterioration program is a U.S. air quality permitting system that limits emissions from new or modified major pollution sources in areas that already meet national air quality standards.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Clean Air Act
Nonattainment New Source Review program
→
contrastsWith
→
Prevention of Significant Deterioration program
ⓘ