Return to Table of Contents INTRODUCTION The following are detailed instructions to assist you in completing your application for an air quality permit to construct and operate an emissions source(s) and/or control device(s). The application forms are comprehensive and designed to cover most facilities. Industry-specific air permit application forms are available as indicated in the application. A typical application will only require the completion of five (5) or six (6) pages. Because the application is not ideally suited for every conceivable operation, applicants are encouraged to submit additional information as attachments to the forms when needed to complete the application and provide adequate explanation of the operations. Application forms are available on the Division’s webpage at the following URL: Applications must be submitted in hardcopy format only. Applications which are altered in any significant manner will not be accepted. If you have any questions, please contact the Division of Air Quality, Air Permits Section, at (919) the appropriate Regional Office listed on the page following the general instructions, or the Department of Environmental Assistance and Customer Service at 1-(877)-623-6748. Identify your inquiry as pertaining to an air permit application.
DESCRIBE IN DETAIL THE EMISSION SOURCE PROCESS (ATTACH FLOW DIAGRAM) – Enter a brief description of the process occurring in this emission source (e.g. Natural gas-fired boiler, 25 mmBtu/hr maximum heat input.) For more complex processes, attach either a full process flow diagram or a simplified block flow diagram. This is to provide the permit writer information about the process in order to determine the applicable regulations and requirements. TYPE OF EMISSION SOURCE (CHECK AND COMPLETE APPROPRIATE FORM B1 – B9 ON THE FOLLOWING PAGES) – Mark the appropriate check box for the type of emission source. For sources that do not fall into one of the categories covered by Forms B1 through B8, use the Form B9 “Other”. COAL, WOOD, OIL, GAS, FUEL-FIRED BURNER (FORM B1) – Use this form for sources which combust various fuels. This would include boilers, kilns, dryers, process heaters, etc. Do not use this form for internal combustion engines or generators. INTERNAL COMBUSTION ENGINES/GENERATORS (FORM B2) – Use this form for internal combustion engines (e.g. fire pumps, electrical generators, air compressors, or engines used for conveyors, crushers, etc.) LIQUID STORAGE TANKS (FORM B3) – Use this form for either underground or above-ground tanks storing liquid materials. WOODWORKING (FORM B4) – Use this form for woodworking operations COATING/FINISHING/PRINTING (FORM B5) – Use this form for processes which apply coatings and finishes or for printing operations. STORAGE (FORM B6) – Use this form for storage silos and bins storing solid materials. MANUFACTURING OF CHEMICALS/COATINGS/INKS (FORM B7) – Use this form for a source which produces chemicals, coatings, or inks. INCINERATION (FORM B8) – Use this form for sources used to eliminate or other materials through thermal incineration. OTHER (FORM B9) – Use this form for sources which are not covered by other emission source sections listed above. OTHER GENERAL INFORMATION ABOUT THE SOURCE START CONSTRUCTION DATE – Enter the proposed date that construction will commence DATE MANUFACTURED – Enter the date of manufacture for the equipment MANUFACTURER NO. – Enter the model number EXPECTED OP. SCHEDULE – Enter the expected schedule of operation NSPS/NESHAP APPLICABILITY – the check box if subject to either NSPS or NESHAP regulations, and enter the subparts as appropriate
PERCENTAGE ANNUAL THROUGHPUT - the proposed percentage of the operating time that will occur in each quarter of the year CRITERIA AIR POLLUTANT EMISSIONS INFORMATION – For each pollutant, the following information: SOURCE OF EMISSION FACTOR – Enter the code which corresponds to the source of the emission factor from the table below: EMISSION FACTOR CODE DESCRIPTION 01 CONTINUOUS EMISSION MONITORING SYSTEM (CEMS) 02 ENGINEERING JUDGEMENT WITH DOCUMENTATION 03 MATERIAL BALANCE 04 NC DAQ-APPROVED & REPRESENTATIVE STACK TESTS 08 USEPA/AP-42 EMISSION FACTOR NOT IN NC SPREADSHEETS 09 NC/LOCAL APPROVED EMISSION FACTOR (e.g., NC. SPREADSHEETS) 10 NC APPROVED SITE-SPECIFIC EMISSION FACTOR EMISSIONS ESTIMATES – Enter the estimates of the emissions from this emission source EXPECTED ACTUAL – Enter the emission rate that is expected for normal operation including any pollution controls, operational limitations, or permit limitations, in lbs/hr and tons/yr POTENTIAL EMISSIONS BEFORE CONTROLS/LIMITS – Enter the maximum potential emissions of the emission source, based on operation 24 hours per day, 365 days per year (8,760 hours/yr), prior to applying any pollution controls, operational limitations, or permit limitations, in lbs/hr and tons/yr POTENTIAL EMISSIONS AFTER CONTROLS/LIMITS – Enter the maximum potential emissions of the emission source after the application of any pollution control devices, operational limitations, or permit limitations, in lbs/hr and tons/yr HAZARDOUS AIR POLLUTANT EMISSION INFORMATION – Enter information for each Hazardous Air Pollutant (HAP) expected to be emitted from this source, including name, CAS Number, and expected/actual emissions. “Hazardous Air Pollutant" means any pollutant that has been listed pursuant to Section 112(b) of the federal Clean Air Act. Pollutants listed only in 15A NCAC 02D .1104 (Toxic Air Pollutant Guidelines), but not pursuant to Section 112(b), are not be included in this definition. TOXIC AIR POLLUTANT EMISSION INFORMATION – Enter information for the expected actual emissions after controls of each air pollutant designated as a Toxic Air Pollutant, in lb/hr, lb/day, and lb/yr. "Toxic Air Pollutant" means any of the carcinogens, chronic toxicants, acute systemic toxicants, or acute irritants that are listed in 15A NCAC 02D .1104. FORM B1 – EMISSION SOURCE (WOOD, COAL, OIL, GAS, FUEL-FIRED BURNER)
RESIDENCE TIME (SEC) – Enter the residence time in the primary chamber, in seconds. CHAMBER VOLUME (FT3) – Enter the volume of the primary chamber, in cubic feet. SECONDARY CHAMBER – Enter information about the secondary chamber of the incinerator. FIRING RATE – Enter the manufacturer’s maximum rated firing rage, in million Btu per hour. OPERATING TEMPERATURE (oF) – Enter the operating temperature of the primary chamber, in degrees Fahrenheit. RESIDENCE TIME (SEC) – Enter the residence time in the primary chamber, in seconds. CHAMBER VOLUME (FT3) – Enter the volume of the primary chamber, in cubic feet. EXCESS AIR (%) – Enter the percent excess air for the combustion process. AIR DISTIBUTION – Mark the appropriate check box for the type of air distribution in the incinerator. OVERFIRED – Mark this box if the air enters the combustion chamber above the incinerated material. Overfired air is usually applied above the burning bed and directed through openings in the charging door or incinerator walls. UNDERFIRED – Mark this check box if the air enters the combustion chamber below the incinerated material. Underfired air is usually directed through air inlets located near the floor or hearth of the primary chamber. AIR FLOW ENTERING THE UNIT (ACFM) – Enter the volumetric flow rate of ambient air that is introduced into the incinerator, in actual cubic feet per minute. TYPE OF CHARGING – the type of charging of the material to be incinerated (e.g. manual, automatic charge, continuous, etc.) MAXIMUM FIRING RATE (MMBTU/HR) – Enter the manufacturer’s rated maximum firing rate, in million Btu per hour. QUANTITY OF WASTE BURNED – Enter information regarding the amounts of waste burned in the incinerator. HOURLY CHARGE RATE (LB/HR) – Enter the maximum charging rate, in pounds per hour. MAXIMUM REQUESTED CHARGE RATE (TONS/YR) – Enter any requested charging rate limitation in order to avoid regulatory thresholds. DESIGNED MAXIMUM QUANTITY WASTE BURNED (LBS/HR) – Enter the manufacturer’s rated maximum design capacity of the incinerator, in pounds per hour.
– How much of the material is used, and what is the unit of measure? MAXIMUM DESIGN CAPACITY (UNIT/HR) – Enter the maximum usage of the material based on the constraints of the process. REQUESTED CAPACITY LIMITATION (UNIT/HR) – Enter any requested usage restrictions in order to avoid regulatory thresholds. MATERIALS ENTERING THE PROCESS - BATCH OPERATION – List the materials that are used in the process to make the end product leaving the process. TYPE, UNITS, MAXIMUM DESIGN CAPACITY, REQUESTED CAPACITY LIMITATION – Enter the same type of information as listed for a continuous process above. MAXIMUM DESIGN (BATCHES/HR) – the maximum number of batches that may be produced per hour based on the manufacturer’s design and any production constraints (specify any constraints in comments.) REQUESTED LIMITATION (BATCHES/HR, BATCHES/YR) – Enter any requested limitation to the number of batches run per hour in order to avoid regulatory thresholds, either in batches per hour or in batches per year. FUEL USED – Enter the type(s), if any, of fuel used to heat the process. MAXIMUM FIRING RATE (MILLION BTU/HR) – Enter the manufacturer’s maximum design firing rate, in million Btu per hour, for the heating source for the process. COMMENTS – Enter any comments here to include additional information or clarify information on this form. Add additional sheets if necessary. FORM C1 – CONTROL DEVICE (FABRIC FILTER) This form should be completed for any fabric filter control devices listed on Form A2. Form C1 allows for the entering of general information about an individual fabric filter control device or group of identical control devices followed by more specific information about the control device(s). Identical control devices associated with identical emission sources should be grouped together in the application if they are subject to the same applicable regulations. The general information on Form C1 should be completed for every fabric filter control device listed on Form A2. In addition, specific information about the particular fabric filter should be completed in the appropriate sections. CONTROL DEVICE ID NO – Enter a unique ID number for each control device for which application is made. For multiple control devices on the same emission source, list in series according to the exhaust
CORRESPONDING OVERALL EFFICIENCY – Enter the estimated overall efficiency of the control device for the specific pollutant listed (e.g. if capture efficiency is 80% and control device efficiency is 90%, the corresponding overall efficiency would be 72%.) EFFICIENCY DETERMINATION CODE – Enter the code to represent how the efficiency was determined Calculated (Attach all calculations.) Manufacturer’s specifications or guarantees (Enclose documentation as appropriate.) Source Test (Attach documentation or reference test already submitted to DAQ.) Other (Describe.) TOTAL AFTER CONTROL EMISSION RATE (LB/HR) – Enter the total after control emission rate in pounds per hour. This is calculated by multiplying the Before Control Emission Rate by the Corresponding Overall Efficiency. PRESSURE DROP (IN H2O) – Enter the minimum and maximum expected pressure drop across the control device, in inches of water. BULK PARTICLE DENSITY (LB/FT3) – Enter the bulk particle density of the material collected, in pounds per cubic foot. INLET TEMPERATURE (oF) – Enter the minimum and maximum expected inlet temperature of the exhaust gases, in degrees Fahrenheit OUTLET TEMPERATURE (oF) – Enter the minimum and maximum expected outlet temperature of the exhaust gases, in degrees Fahrenheit. INLET AIR FLOW RATE (ACFM) – Enter the inlet air flow rate, in Actual Cubic Feet per Minute (ACFM). OUTLET AIR FLOW RATE (ACFM) – Enter the outlet air flow rate, in Actual Cubic Feet per Minute (ACFM). INLET AIR FLOW VELOCITY (FT/SEC) – Enter the inlet air flow velocity, in feet per second. OUTLET AIR FLOW VELOCITY (FT/SEC) – Enter the outlet air flow velocity, in feet per second. INLET MOISTURE CONTENT (%) – Enter the moisture content of the inlet gas stream, in percent. FORCED/INDUCED AIR – Mark the appropriate check box for this control device. COLLECTION SURFACE AREA (FT2) – Specify the surface area on the pollutant is collected, if applicable.
any source with non-optional air pollution control equipment that constitutes an integral part of the process equipment as originally designed and manufactured by the equipment supplier; sources that are permitted under Rule .0310 or .0509 of this Subchapter; spray booths without air pollution capture and control systems for volatile organic compound emissions; particulate emission sources with air flow rates of less than or equal to 10,000 actual cubic feet per minute; nonmetallic mineral processing plants with wet suppression control systems for particulate emissions; or permit renewal if no modifications are included in the permit renewal application…” FORM D6 – NORTH CAROLINA MODELING PROTOCOL CHECKLIST This form may be used in lieu of developing the traditional written modeling plan for North Carolina toxics and criteria pollutant modeling. It is designed to provide the same level of information as requested in a modeling protocol, as discussed in Chapter 2 of the Guideline for Evaluating the Air Quality Impacts of Toxic Pollutants in North Carolina. The modeling protocol checklist is submitted with the modeling analysis. The above referenced Guideline can be found at the following web link: Most of the information requested in the modeling protocol checklist is self-explanatory. References to sections, tables, figures, appendices, etc. in the checklist are found in the toxics modeling Guideline referenced above. If you have questions concerning this form, call the DAQ Raleigh Central Office and ask to speak to one of the Air Quality Analysis Branch modelers. FORM E1 – TITLE V GENERAL INFORMATION If your facility is classified as “Major” for Title V you must complete Form E1 and all other required “E” forms (E2 through E5) as applicable. The form lists information pertaining to why the facility is subject to Title V requirements (mark the appropriate check boxes), and applicability of federal NESHAP standards to the emission sources at the facility (fill in the appropriate information). In addition, the Applicant should list any additional regulation(s) which are being requested to be included in the permit shield and the associated emission source ID(s). Provide a detailed explanation as to why the shield should be granted.