Air Toxics - NESHAP

Air Toxics Standards for Stationary Engines

(40 CFR Part 63 Subpart ZZZZ, also known as RICE NESHAP*)

The RICE NESHAP was first promulgated in 2004, and has been amended several times since then. This NESHAP places requirements on owners and operators of a wide variety of stationary engines. DNR's adoption of the 2010 and 2013 RICE NESHAP amendments became effective on October 23, 2013. This means that DNR, rather than EPA, is now the primary authority for RICE implementation in Iowa, allowing the DNR to provide compliance assistance and outreach to facilities. RICE NESHAP responsibilities have been transferred from EPA to the DNR. * RICE NESHAP is the commonly-used acronym for the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Stationary Reciprocating Internal Combustion Engines (RICE) [40 Code of Federal Regulations (CFR) Part 63, Subpart ZZZZ]

Compliance Assistance Tools

DNR has created several compliance assistance tools for facilities subject to the RICE NESHAP.

• Initial Notification |
• Annual/Semi-Annual Compliance Report |
• Notification of Compliance Status |
• Summary Table of RICE NESHAP Requirements

To obtain information on whether a specific engine may be subject to the RICE NESHAP or whether it is in compliance with RICE NESHAP requirements, please contact Sarah Mousel at the DNR (Sarah.Mousel@dnr.iowa.gov or call 515-725-8403).

EPA has developed the following RICE NESHAP implementation tools and guidance:

• EPA RICE NESHAP webpage
• EPA RICE Implementation webpage
• RICE Regulation Navigation Tool
• RICE NESHAP (40 CFR Part 63 Subpart ZZZZ)

Permit Requirements for Stationary Engines

Construction Permit Amnesty for Engines

On October 23, 2013, the Iowa DNR, along with the Polk County and Linn County Air Quality Divisions, initiated an amnesty program for engines. The intent of the amnesty was to provide Iowa businesses an opportunity to "catch up on" air quality permitting requirements they had missed, without the risk of potential enforcement actions and penalties.

The amnesty period ended on April 23, 2014. DNR is pleased to report that 110 Iowa businesses, operating 127 engines, took advantage of the amnesty and submitted the past due permit applications, registrations, or permit exemption information.

Results of DNR Air Quality Bureau's 6-month amnesty period for as-built engines (includes Linn County and Polk County):

Registration Requirement for New Engines Smaller Than 400 Horsepower

Engine Registration Forms

• Compression Ignition (CI) Engines < 400 HP |
• Spark Ignition (SI) Engines < 400 HP |

Engine Registration FAQ

• Engine Registration - Frequently Asked Questions
• Engines - More Frequently Asked Questions

Notification Requirement for Installation of Control Equipment on Existing Engines

Control equipment may be installed on an existing stationary engine without modifying the engine's construction permit. This permitting exemption is allowed under 567 IAC 22.1(2) "g". Facilities choosing this option are required to submit a notification to DNR 30 days prior to installing the control equipment.

• Notification of Intent to Install Pollution Control Equipment |

If the exhaust stack for the engine will be modified significantly, a construction permit may be necessary. If you have any questions about whether your engine qualifies for this permitting exemption, please call the Construction Permit Help Line (1-877-AIR-IOWA).

Major Source Boilers and Process Heaters (5D)

General Information

• EPA Major Source Boiler Page

Forms

• Initial Notification Form |

Note: Facilities that already submitted an initial notification for the Major Source Boiler MACT promulgated on March 21, 2011, are not required to submit another initial notification at this time. Facilities that have not submitted an initial notification since the “old” Boiler MACT (promulgated in 2004) will need to submit a new notification.

Area Source Boilers (6J)

The Area Source Boiler NESHAP does not apply to process heaters, and it does not apply to “gas-fired boilers,” as defined in 6J: Gas-fired boiler includes any boiler that burns gaseous fuels not combined with any solid fuels and burns liquid fuel only during periods of gas curtailment, gas supply interruption, startups, or periodic testing on liquid fuel. Periodic testing of liquid fuel shall not exceed a combined total of 48 hours during any calendar year.

General Information

• EPA Area Source Boiler Page
• EPA: Compliance for Area Source Boilers

Common Links (6B and 6C)

General Information

• Gasoline NESHAP regulations

Forms

• Compliance Schedule |

Bulk Gasoline Plants (6B)

General Information

• Frequently Asked Questions
• UNI Bulk Gasoline Plant Webinars
• Compliance Assistance Calendar for Small Bulk Gasoline Plants
• Compliance Assistance Calendar for Large Bulk Gasoline Plants

Forms

• Permits Required for Small Bulk Gasoline Plants |
• Permits Required for Large Bulk Gasoline Plants |
• Initial Notification Form |

Gasoline Dispensing Facilities (6C)

General Information

• 6C NESHAP Q&A for 2012 UST Refresher Training
• Frequently Asked Questions
• EPA Pamphlet for Gasoline Dispensing Facilities

Forms

• Notification of Compliance Status |

To help facilities understand new requirements to reduce air emissions from Metal Fabrication and Finishing operations, the Iowa DNR Air Quality Bureau and the Iowa Air Emissions Assistance Program (IAEAP) at the University of Northern Iowa have developed important compliance assistance tools. These tools will help you determine if you are subject to the new rule (6X NESHAP), and how to comply with the requirements. Existing facilities that are subject to the 6X NESHAP will need to comply with these new standards by July 25, 2011. To access the short and informative 6X NESHAP tutorials and other information, go to:

• 6X NESHAP Tools

If you determine you are subject to the 6X NESHAP, you need to submit an “Initial Notification” by no later than July 25, 2011, and a “Notification of Compliance Status” by November 22, 2011. Please use these forms to complete the required notifications:

• Initial Notification Form |
• Notification of Compliance Status |

More 6X NESHAP tools:

• Fact Sheet - All Processes
• Fact Sheet - General Requirements
• Fact Sheet - Dry Abrasive Blasting
• Fact Sheet - Dry Grinding and Polishing
• Fact Sheet - Machining
• Fact Sheet - Spray Painting
• Fact Sheet - Welding
• EPA Q & A (June 2020)
• EPA 6X NESHAP Rule and Implementation Information

For questions about the applicability of the 6X NESHAP to your facility, please call the Iowa DNR’s toll free air quality help line at 1-877-AIR-IOWA (1-877-247-4692). Small businesses (those with 100 or fewer Iowa employees) can also obtain free, confidential regulatory assistance from the IAEAP. You may also contact IAEAP by phone toll free at 1-800-422-3109.

Dry cleaning facilities that use perchloroethylene (also known as perc or PCE) are subject to the National Emission Standards for Hazardous Air Pollutants (NESHAP). This rule includes requirements for control equipment, leak inspections and repair, and recordkeeping and reporting.

General Information:

• Compliance Manual for Dry Cleaners
• Environmental Recordkeeping Calendar for Dry Cleaners
• Short tutorial on leak inspection requirements
• EPA Dry Cleaner NESHAP Website

Forms:

• Notification of Compliance Status |

Questions about Dry Cleaner NESHAP requirements may be directed to Sarah Mousel at DNR (email Sarah.Mousel@dnr.iowa.gov or call 515-725-8403). Small businesses (those with 100 or fewer Iowa employees) can also obtain free, confidential regulatory assistance from the Iowa Air Emissions Assistance Program (IAEAP). You may contact IAEAP by phone toll free at 1-800-422-3109, or visit their website at http://www.iwrc.uni.edu/iaeap/ for more information.

General Information

• Fact Sheet - All Processes
• Fact Sheet - General Requirements
• Fact Sheet - Process Tanks
• Fact Sheet - Thermal Spraying
• Fact Sheet - Dry Mechanical Polishing

Forms

• Initial Notification
• Notification of Compliance Status |

In September 2014, the Iowa DNR adopted the federal standard for the National Emission Standards for Hazardous Air Pollutants for Prepared Feeds Manufacturing at Area Sources (40 CFR 63 Subpart DDDDDDD), otherwise known as the 7D Rule or 7D NESHAP.

The 7D NESHAP applies to a facility that manufactures prepared animal feed or additives for animal feed (sometimes known as a "feed mill"). Affected facilities must comply with specific requirements to minimize dust and emissions from storage, use, or handling of materials containing chromium and manganese.

The Iowa DNR and the Iowa Air Emissions Assistance Program (IAEAP) at the University of Northern Iowa are assisting affected facilities with the 7D NESHAP and related air construction permitting requirements. For questions or to receive compliance assistance, see the resources provided below.

7D Rule Information

• 7D NESHAP Fact Sheet |
• NESHAP 7D Initial Notification/NOCS Form|
• 7D Rule (40 cfr 63 ddddddd)
• for questions, contact sarah mousel by phone at 515-725-8403 or by email at sarah.mousel@dnr.iowa.gov

permitting instructions and guidance

• permitting amnesty for prepared feeds facilities ending july 1, 2016
• prepared feeds-feed mill fee faq
• feed mill air quality inspection guidance
• permitting guidance for facilities using the small unit exemption (sue)
• permitting guidance for facilities not using the small unit exemption (sue)
• list of permitting exemptions (rule 22.1)
• emissions calculator for prepared feeds facilities
• for questions, contact michael hermsen by phone at 515-725-9577 or by email at michael.hermsen@dnr.iowa.gov