NOx SIP Call
E647507
United States federal environmental regulation
air pollution control program
nitrogen oxides emissions trading program
The NOx SIP Call is a U.S. Environmental Protection Agency regulatory program that required eastern states to reduce nitrogen oxide emissions from power plants and other large sources to mitigate interstate ozone pollution.
All labels observed (2)
| Label | Occurrences |
|---|---|
| NOx SIP Call canonical | 3 |
| Nitrogen Oxides State Implementation Plan Call | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7188583 — 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: NOx SIP Call Context triple: [Clean Air Interstate Rule, relatedTo, NOx SIP Call]
-
A.
Nitrogen Oxide Emission Control Areas
Nitrogen Oxide Emission Control Areas are designated maritime zones where stricter limits on ship engine NOx emissions apply to reduce air pollution and protect human health and the environment.
-
B.
New Source Performance Standards
New Source Performance Standards are U.S. federal air pollution regulations that set emission limits and control requirements for newly built or significantly modified industrial sources.
-
C.
Nonattainment New Source Review program
The Nonattainment New Source Review program is a Clean Air Act permitting program that imposes stringent emission control and offset requirements on new or modified major pollution sources located in areas that do not meet national ambient air quality standards.
-
D.
NESHAP
NESHAP stands for National Emission Standards for Hazardous Air Pollutants, a set of U.S. federal regulations that limit emissions of toxic air pollutants from industrial and commercial sources.
-
E.
Clean Air Interstate Rule
The Clean Air Interstate Rule was a U.S. Environmental Protection Agency regulation aimed at reducing interstate air pollution from power plants, particularly sulfur dioxide and nitrogen oxides that contribute to fine particulate matter and ozone.
- 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: NOx SIP Call Target entity description: The NOx SIP Call is a U.S. Environmental Protection Agency regulatory program that required eastern states to reduce nitrogen oxide emissions from power plants and other large sources to mitigate interstate ozone pollution.
-
A.
Nitrogen Oxide Emission Control Areas
Nitrogen Oxide Emission Control Areas are designated maritime zones where stricter limits on ship engine NOx emissions apply to reduce air pollution and protect human health and the environment.
-
B.
New Source Performance Standards
New Source Performance Standards are U.S. federal air pollution regulations that set emission limits and control requirements for newly built or significantly modified industrial sources.
-
C.
Nonattainment New Source Review program
The Nonattainment New Source Review program is a Clean Air Act permitting program that imposes stringent emission control and offset requirements on new or modified major pollution sources located in areas that do not meet national ambient air quality standards.
-
D.
NESHAP
NESHAP stands for National Emission Standards for Hazardous Air Pollutants, a set of U.S. federal regulations that limit emissions of toxic air pollutants from industrial and commercial sources.
-
E.
Clean Air Interstate Rule
The Clean Air Interstate Rule was a U.S. Environmental Protection Agency regulation aimed at reducing interstate air pollution from power plants, particularly sulfur dioxide and nitrogen oxides that contribute to fine particulate matter and ozone.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
United States federal environmental regulation
ⓘ
air pollution control program ⓘ nitrogen oxides emissions trading program ⓘ |
| addresses | ozone transport across state boundaries ⓘ |
| addressesProblem | regional smog formation ⓘ |
| aimsTo |
mitigate transported ozone precursors
ⓘ
reduce interstate ozone pollution ⓘ |
| appliesTo | eastern United States states ⓘ |
| complianceApproach | regional emissions trading ⓘ |
| complianceInstrument | NOx emissions allowances ⓘ |
| environmentalMedium | ambient air ⓘ |
| fullName |
Nitrogen Oxides State Implementation Plan Call
ⓘ
linked to:
NOx SIP Call
|
| geographicScope |
eastern United States
ⓘ
linked to:
Eastern United States
|
| goal |
help attain national ambient air quality standards for ozone
ⓘ
reduce summertime NOx emissions ⓘ |
| hasAbbreviation | NOx SIP Call ⓘ |
| hasRegulator | United States Environmental Protection Agency ⓘ |
| implementedBy | state environmental agencies ⓘ |
| isDesignedTo | address significant contribution to nonattainment in downwind states ⓘ |
| isPartOf | United States air quality management framework ⓘ |
| isRelatedTo |
Cross-State Air Pollution Rule
ⓘ
linked to:
CSAPR
Ozone Transport Commission ⓘ |
| jurisdiction |
United States federal government
ⓘ
linked to:
United States government
|
| legalAuthority |
Clean Air Act section 110
ⓘ
linked to:
Clean Air Act
|
| legalBasis | Clean Air Act ⓘ |
| monitors | emissions from large fossil fuel-fired units ⓘ |
| policyArea |
interstate air pollution transport
ⓘ
ozone smog control ⓘ |
| policyType | market-based environmental regulation ⓘ |
| pollutantRole | ozone precursor ⓘ |
| pollutantType | nitrogen oxides ⓘ |
| regulates | nitrogen oxides emissions ⓘ |
| requires |
continuous emissions monitoring for covered units
ⓘ
state implementation plan revisions ⓘ |
| sector |
electric power generation
ⓘ
large industrial combustion ⓘ |
| targets |
large industrial boilers
ⓘ
other large stationary combustion sources ⓘ power plants ⓘ |
| timeFrame | ozone season ⓘ |
| usesMechanism |
cap-and-trade program
ⓘ
emissions budget for each state ⓘ |
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: NOx SIP Call Description of subject: The NOx SIP Call is a U.S. Environmental Protection Agency regulatory program that required eastern states to reduce nitrogen oxide emissions from power plants and other large sources to mitigate interstate ozone pollution.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: NOx SIP Call