Air Toxics Notebook
Reciprocating Internal Combustion Engines -  Subpart ZZZZ

Applicability: eCFR Subpart ZZZZ - [ecfr.gov]

This subpart applies to:
  1. Stationary reciprocating internal combustion engines (RICE), unless they are being tested at a stationary RICE test cell/stand.

The following RICE are subject to the rule, but have no requirements:
  1. Existing spark ignition 2SLB RICE > 500 HP at Major Sources;
  2. Existing spark ignition 4SLB RICE > 500 HP at Major Sources;
  3. Existing emergency RICE > 500 HP at Major Sources that operate ≤ 15 hours/year for emergency demand response and local reliability voltage deviations;
  4. Existing limited use RICE > 500 HP at Major Sources;
  5. Existing landfill or digester gas RICE > 500 HP at Major Sources.

Not Subject to this Subpart:
  1. Existing residential, commercial, and institutional emergency RICE at Area Sources used ≤ 15 hours/year for emergency demand response, provided they are not also used for local reliability.
All other RICE are subject to requirements under this rule or under the New Source Performance Standards (NSPS) Subpart IIII for compression ignition or Subpart JJJJ for spark ignition engines.
Rules apply to small, area sources? Yes
Known Sources in NDEQ Jurisdiction: (See attached file: 4Z - Initial Notifications Received - 2012-01-31.pdf)
SizeFile Name
36 KB 4Z - Initial Notifications Received - 2012-01-31.pdf
Date of Original Final Rule: 6/14/04
Amendments Dates: 08/15/2014 - Final Decision on Reconsideration
01/30/2013 - Final Rule
03/09/2011 - Direct final - amendments to 08/20/2010
08/20/2010 - Final rule - existing spark ignition engines
06/30/2010 - Corrections to 03/03/2010 rule.
03/03/2010 - Final rule - existing compression ignition
01/18/2008 - Final rule
06/26/2006 - Correction
State Regulations (Title 129): Title 129, Chapter 28, Section 001.88. Sources are also responsible for ensuring they are in compliance with current federal requirements found for this subpart in the CFR.
Federal Regulations: 40 CFR 63.6580
Related Rules:

NSPS – 40 CFR Part 60

Subpart IIII – Stationary Compression Ignition Internal Combustion Engines
Subpart JJJJ - Stationary Spark Ignition Internal Combustion Engines

NESHAP - 40 CFR Part 63
Subpart PPPPP - Engine Test Cells & Stands
Regulations and Federal Registers:
eCFR Subpart ZZZZ - [ecfr.gov]

(See attached file: 4Z - Fed. Reg. 2014-08-15 - Decision on Reconsideration.pdf)

(See attached file: 4Z - Fed. Reg. 2013-09-05 - Reconsideration.pdf)

(See attached file: 4Z - Fed. Reg. 2013-01-30 - Final Rule.pdf)

(See attached file: 4Z - Fed. Reg. 2011-03-09 - Direct Final.pdf)

(See attached file: 4Z - Fed. Reg. 2010-12-07 - Reconsideration.pdf)

(See attached file: 4Z - Fed. Reg. 2010-08-20 - Final Existing SI Rules.pdf)

(See attached file: 4Z - Fed. Reg. 2010-06-30 - Correction.pdf)

(See attached file: 4Z - Fed. Reg. 2010-03-03 - Final Rule.pdf)

(See attached file: 4Z - Fed. Reg. 2008-01-18 - Final Rule.pdf)

(See attached file: 4Z - Fed. Reg. 2004-06-15 - Final Rule.pdf)

SizeFile Name
202 KB 4Z - Fed. Reg. 2014-08-15 - Decision on Reconsideration.pdf
222 KB 4Z - Fed. Reg. 2013-09-05 - Reconsideration.pdf
638 KB 4Z - Fed. Reg. 2013-01-30 - Final Rule.pdf
218 KB 4Z - Fed. Reg. 2011-03-09 - Direct Final.pdf
158 KB 4Z - Fed. Reg. 2010-12-07 - Reconsideration.pdf
351 KB 4Z - Fed. Reg. 2010-08-20 - Final Existing SI Rules.pdf
49 KB 4Z - Fed. Reg. 2010-06-30 - Correction.pdf
255 KB 4Z - Fed. Reg. 2010-03-03 - Final Rule.pdf
304 KB 4Z - Fed. Reg. 2008-01-18 - Final Rule.pdf
312 KB 4Z - Fed. Reg. 2004-06-15 - Final Rule.pdf
Forms: NDEQ Notification Forms - Revised 11/21/11

(See attached file: 4Z - Initial Notification Form.pdf)(See attached file: 4Z - Initial Notification Form.docx)

(See attached file: 4Z - Compliance Status Notification Form.pdf)(See attached file: 4Z - Compliance Status Notification Form.docx)

Compliance Extension Request Form

SizeFile Name
135 KB 4Z - Initial Notification Form.pdf
41 KB 4Z - Initial Notification Form.docx
199 KB 4Z - Compliance Status Notification Form.pdf
56 KB 4Z - Compliance Status Notification Form.docx
Important Dates:
(See attached file: 4Z - Important Dates.pdf)- Revised Aug 14, 2013

SizeFile Name
549 KB 4Z - Important Dates.pdf
FAQs, Fact Sheets, and Rule Summaries: EPA Stationary Internal Combustion Engine Website - [epa.gov]
Contains federal register notices, compliance guidance, and implementation tools for NESHAP ZZZZ and NSPS IIII & JJJJ.

EPA Subpart ZZZZ Reg Nav Tool - [epa.gov]


Texas CEQ Subpart ZZZZ Website - [tceq.texas.gov]
Contains helpful reference tables and flowchart determinations

(See attached file: EPA RICE Summary Table of Requirements - 2013-03-21.xlsx)

SizeFile Name
48 KB EPA RICE Summary Table of Requirements - 2013-03-21.xlsx
Presentations, Training and Articles: (See attached file: 4Z - EPA NESHAP 4Z Rule Overview Presentation - 2013-02.pdf)
SizeFile Name
928 KB 4Z - EPA NESHAP 4Z Rule Overview Presentation - 2013-02.pdf
Other Information and Resources:
EPA Regulation Navigation Tool - [epa.gov]
Step-by-step determination of applicable RICE NESHAP regulations.

EPA ZZZZ Regulation Navigation Tool - [epa.gov]. Software program designed to help owners and operators of reciprocating internal combustion engines (RICE) determine their requirements under this subpart..


Engine Compliance Calculator - [step2compliance.com]
Step 2 Compliance - This free calculator covers NSPS IIII/JJJJ, NAAQS status, and state standards as well as NESHAP ZZZZ. The subscription version also provides all the details on the specific requirements triggered under each of these categories where applicable.

(See attached file: 4Z - EPA Control Costs for Existing SI.pdf)(See attached file: 4Z - EPA Control Costs for Existing CI.pdf)

(See attached file: 4Z - EPA letter Reconsider Peaking for Small Engines.pdf)

(See attached file: 4Z - NRECA petition for reconsideration 10-19-2010.pdf)

(See attached file: 4Z - NDEQ Emergency Limitations Clarification - 09-01-2010.pdf)

(See attached file: 4Z - EPA Guidance on residential-institutional-commercial emergency engine definition.pdf)

(See attached file: 4Z - EPA Clarification of Emergency to MPUA 2010.pdf)

SizeFile Name
221 KB 4Z - EPA Control Costs for Existing SI.pdf
114 KB 4Z - EPA Control Costs for Existing CI.pdf
230 KB 4Z - EPA letter Reconsider Peaking for Small Engines.pdf
126 KB 4Z - NRECA petition for reconsideration 10-19-2010.pdf
1,482 KB 4Z - NDEQ Emergency Limitations Clarification - 09-01-2010.pdf
121 KB 4Z - EPA Guidance on residential-institutional-commercial emergency engine definition.pdf
337 KB 4Z - EPA Clarification of Emergency to MPUA 2010.pdf
Notes:
Page Last Updated: 6/29/18