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CODE ASSIGNMENT. Anna Komorniczak Emission Inventory Workshop Air Resources Board March 13, 2006. Type of Codes. SCC: Source Classification Code SIC: Standard Industrial Classification NAICS: North American Industry Classification System EIC: Emission Inventory Code.

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Code assignment l.jpg

CODE ASSIGNMENT

Anna Komorniczak

Emission Inventory WorkshopAir Resources Board

March 13, 2006


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Type of Codes

  • SCC: Source Classification Code

  • SIC: Standard Industrial Classification

  • NAICS: North American Industry Classification System

  • EIC: Emission Inventory Code

Emission Inventory Workshop Spring 2006


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Where to Find These Codes ?

  • Emission Inventory Procedural Manual

  • HARP software

  • District Resources Web Page

  • CEIDARS Web Page in Utility Tables

Emission Inventory Workshop Spring 2006


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Source Classification Code (SCC)

  • 8 Digit Code to Identify Emission Processes

  • Created by U.S. EPA

  • 9865 Valid SCCs Available

Emission Inventory Workshop Spring 2006


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Organization of SCCs

Four Levels of Source Descriptions

Example: 2-02-001-02

  • First level(2-) Process Category

  • Second level (2-02-) Major Industry

  • Third level (2-02-001-) Product, Raw Material, Fuel Type, or Equipment

  • Fourth level (2-02-001-02) Particular Emitting Process

Emission Inventory Workshop Spring 2006


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Example of SCC

2-02-001-02

  • L1 - Internal Combustion

  • L2 - Industrial

  • L3 - Distillate Oil/Diesel

  • L4 - Reciprocating

Emission Inventory Workshop Spring 2006


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How to Select an SCC?

  • In CEIDARS SCCs are used as a primary identifying data element in Process Table

  • Match SCC Description with Process Description and Process Rate Units

Emission Inventory Workshop Spring 2006


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Standard Industrial Classification (SIC)

  • 4 Digit Code to Identify Business Activity

  • Published by U.S. Office of Management and Budget (OMB)

  • 1700 valid SICs Available

Emission Inventory Workshop Spring 2006


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Organization of SICs

  • SIC codes are use to describe the type of activity that occurs at facility

  • Major Economic Sectors (Agriculture, Mining, Construction, Manufacturing, Transportation, Wholesale Trades, Retail Trades, Finance, Services, and Public Administration)

  • 0111- 3999 Manufacturing (Industrial)

  • 4011- 9721 Non-manufacturing (Commercial)

Emission Inventory Workshop Spring 2006


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Example of SIC

  • 1442 Construction Sand and Gravel

  • 2023 Dry, Condensed, Evaporated Products

  • 4911 Electric Services

  • 5411 Grocery Stores

  • 9999 Not Valid Code

Emission Inventory Workshop Spring 2006


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Facility vs. Process SIC

  • In CEIDARS SICs are used on two levels in Facility Table and in Process Table

  • Facility SIC Identifies Primary Activity of Entire Facility

  • Process SIC Identifies Type of Activity for a Specific Process

Emission Inventory Workshop Spring 2006


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Example of Facility and Process SICs

  • Facility SIC 8062 General Medical and Surgical Hospitals

  • Process SIC 4931 Electric and Other Services Combined

  • SCC code 2-01-002-01 (Internal Combustion - Electric Generation - Dist. Oil/Diesel - Turbine)

Emission Inventory Workshop Spring 2006


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North American Industry Classification System (NAICS)

  • NAICS replaces the 1987 SIC

  • 6 Digit Code for Classifying Business Establishments

  • Created and Maintained by U.S. OMB

  • Reflects the Structure of Economy Including the Service Sector and New Technologies

Emission Inventory Workshop Spring 2006


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NAICS

112410 Sheep Farming

112420 Goat Farming

SIC

0214 Sheep and Goats

NAICS vs. SIC (1)

Emission Inventory Workshop Spring 2006


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NAICS

622110 General Medical and Surgical Hospitals

SIC

8069 Children’s Hospital

8062 General Medical and Surgical Hospitals

NAICS vs. SIC (2)

Emission Inventory Workshop Spring 2006


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Emission Inventory Code (EIC)

  • 14 Digit Code to Classify and Report Emission Data by Specific Source Categories

  • Created and Maintained by ARB

  • Identify Each Area Source Category

  • Provide Automatic Reconciliation for Area and Point Sources

Emission Inventory Workshop Spring 2006


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Organization of EICs

Four levels of identification:

  • Level I - Summary Category (Electric Utilities, Industrial Processes, etc.)

  • Level II – Source Category (Boilers, Landfills, Farming Operations, etc.)

  • Level III – Materials (Diesel, Wood, Dust, etc.)

  • Level IV – Sub-Category

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Example of EIC

620-618-0262-0102

  • 620 Miscellaneous Processes

  • 618 Farming Operations (Source Category)

  • 0262 Livestock Husbandry (Material Type)

  • 0102 Ranch Cattle (Sub-category)

Emission Inventory Workshop Spring 2006


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EIC and Valid SCC/SIC

  • EIC is assigned to each valid SCC/SIC combination

  • New combinations are assigned upon positive verification

  • Combination is not valid if SCC does not exist, SIC does not exist or SCC & SIC are not both for the same process type (commercial or industrial)

  • In CEIDARS there are ~50,000 valid SCC/SIC combinations

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Case Study

  • Facility “Diamond Landfill” waste disposal facility with IC engine operations

  • How I find SIC, NAICS and SCC?

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Steps in Assigning an SCC/SIC

  • Assign an SIC and NAICS based on the Type of Business Activity (in Facility Table)

  • Assign an SCC based on the Type of Process (in Process Table)

  • Assign an SIC and NAICS based on the Process Activity ( in Process Table)

Emission Inventory Workshop Spring 2006


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Example of SCC/SIC

  • Correct Assignments for Waste Disposal Site with IC Engine Diesel Reciprocating

    • Facility SIC: 4953

    • Facility NAICS: 562212

    • Process SCC: 2-01-001-02

    • Process SIC: 4911

    • EIC: 099-040-1200-0000

Emission Inventory Workshop Spring 2006


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Example of SCC/SIC Cont.

  • Facility SIC: Refuse Systems

  • Facility NAICS: Solid Waste Landfill

  • Process SCC: Internal Combustion Sources-Electric Generation-Distillate Oil/Diesel-Reciprocating

  • Process SIC: Electric Services

  • EIC: Fuel Combustion Other-Stationary Engine-Diesel

Emission Inventory Workshop Spring 2006


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More information

  • District Resources Web Page

  • ARB Web Page

  • Call Anna Komorniczak at

    (916) 327-8170

Emission Inventory Workshop Spring 2006


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