Every facility site must have at least one emissions unit. An emissions unit is any significant activity, stationary article, process equipment, machine, or other device that emits air pollutants.
For the EIS, an emissions unit may represent the traditional unit concept, such as a boiler, flare, or turbine. However, a "unit" may also represent a group of units, if they are all identical in their characteristics and they are permitted or report emissions collectively. Finally, a "unit" may be defined to represent a source of fugitive emissions at a facility, such as those produced at a landfill or from all unpaved roads within the facility boundaries.
Use the EmissionsUnit component to report information about emissions units at a facility site. A facility site may have one or more emissions units, and each emissions unit must have at least one emissions process. The data elements for emissions units identify a specific unit, its physical attributes, and its operating status. Other related components provide further information about the unit's processes, regulations, and control approaches.
Impact of incomplete information or critical errors. If there are critical errors relating to data elements that require reporting codes, these data elements will not be stored, but all other data in the record will be accepted. If a reporting code for unit of measure is not valid, the data value for which it supports will also not be accepted. If the check that looks for required emissions unit identifiers fails, no data for that unit will be accepted.
Name of the organization.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 276 | Unit Description Data Type | Maximum allowable width of 100 characters. Longer submissions will be truncated. | Format | Warning |
Code that identifies the type of emissions unit activity.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 67 | Unit Type Code Present | The unit type code is required when reporting the EmissionsUnit component. The component and all dependent data will not be stored if there are missing required data. | Present | Critical |
| 68 | Unit Type Code Valid | Must match value in code list. | Code | Critical |
The measure of the size of the unit based on the maximum continuous throughput capacity of the unit.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 69 | Design Capacity Conditionally Present | The design capacity should be reported for unit type codes: 100, 120, 140, 160, and 180. | Present | Warning |
| 199 | Design Capacity Range | Should be between 0.01 to 100,000,000; inclusive. | Range | Critical |
| 277 | Design Capacity Data Type | This element must be reported as a float. | Format | Critical |
Unit of measure for the design capacity of the emissions unit.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 70 | Design Capacity Unit of Measure Present | Design capacity and design capacity unit of measure must both be reported for either to be accepted. | Present | Critical |
| 71 | Design Capacity Unit of Measure Code Valid | Must match value in code list. | Code | Critical |
Code that identifies the operating status of the emissions unit.
User Role AccessibilitySLT, Inventory Developer [State/Local/Tribe Only] *
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 185 | Unit Status Code Present | The unit status code is required when reporting the EmissionsUnit component. The component and all dependent data will not be stored if there are missing required data. | Present | Critical |
| 72 | Emissions Unit Status Code Valid | Must match value in code list. | Code | Critical |
| 74 | Emissions Unit Status Code and Year | If emissions unit status code is not "Operating" (OP), the emissions unit status code year must be reported. | Conditional | Critical |
| 1031 | Operating Status Dependency for Emissions Units | An emissions unit operating status may not be changed if the facility site operating status is "Temporarily Shutdown" (TS) or "Permanently Shutdown" (PS). | Conditional | Critical |
| 1449 | Unit Operating Status at Shutdown Facility | An emissions unit at a facility site with operating status of "Temporarily Shutdown" (TS) or "Permanently Shutdown" (PS) may not have a status of "Operating" (OP). | Conditional | Critical |
| 1975* | Emissions Reported Only for Operating Units | Emissions submitted by state, local, or tribal agencies are not accepted for a unit that has a unit status code other than "Operating" (OP), except where facility source type is "Landfill" or if the unit operating status code year is greater than the current inventory cycle year. | Conditional | Critical |
Code that identifies the operating status of the emissions unit.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 73 | Emissions Unit Status Code Year in Range | The year reported should be between 1900 to 2050. | Range | Critical |
| 74 | Emissions Unit Status Code and Year | If emissions unit status code is not "Operating" (OP), the emissions unit status code year must be reported. | Conditional | Critical |
| 278 | Unit Status Code Year Data Type | This element must be reported as an integer. | Format | Critical |
| 2551 | Unit Operating Status Year With Emissions | The operating status year for statuses other than ""OP"" must be greater than the latest year of emissions submitted to that unit, except for landfills. | Conditional | Critical |
The date on which unit activity became operational.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 75 | Emissions Unit Operation Date Range | The operation date should be between 01/01/1900 to 12/31/2050. | Range | Critical |
| 83 | Effective Date Range for Unit Identification | The effective date range must be between 01/01/1900 to 12/31/2050. | Range | Critical |
| 85 | End Date Range for Unit Identification | The end date must be between 01/01/1900 to 12/31/2050. | Range | Critical |
| 279 | Unit Operation Date Data Type | Date in the format of YYYY-MM-DD. | Format | Critical |
The operation status of a permit that applies to an emissions unit.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 2345 | Unit Permit Status Code and End Year | If Unit Permit Status Code is not "operating" (O) an end year must be provided. | Conditional | Critical |
The beginning year of a permit that applies to an emissions unit.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 2341 | Emissions Unit Permit Status Begin Year Range | The year reported should be between 1900 to 2050. | Range | Critical |
| 2343 | Unit Permit Status Begin Year Data Type | This element must be reported as an integer. | Format | Critical |
The ending year of a permit that applies to an emissions unit.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 2342 | Emissions Unit Permit Status End Year Range | The year reported should be between 1900 to 2050. | Range | Critical |
| 2344 | Unit Permit Status End Year Data Type | This element must be reported as an integer. | Format | Critical |
| 2345 | Unit Permit Status Code and End Year | If Unit Permit Status Code is not "operating" (O) an end year must be provided. | Conditional | Critical |
Any comments regarding the emissions unit activity.
User Role AccessibilitySLT, Inventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 280 | Emissions Unit Comment Data Type | Maximum allowable width of 400 characters. Longer submissions will be truncated. | Format | Warning |
An indicator defining that no data for the unit may be changed.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 2353 | Emissions Unit Protected | If the data in the EIS for emissions unit is protected, the data will not be stored. A request to unprotect the data can be made through the Gateway | Conditional | Critical |
Indicator defining that the design capacity information for a unit cannot be changed.
User Role AccessibilityInventory Developer
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| 1249 | Emissions Unit Design Capacity Protected | If the data in the EIS for emissions unit design capacity and design capacity unit of measure are protected, the data will not be stored. A request to unprotect the data can be made through the Gateway. | Conditional | Critical |
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|
| Number | Name | Description | Type | Severity |
|---|---|---|---|---|