1. Reciprocating Internal Combustion Engine (RICE 4Z) Rule Reciprocating Internal Combustion Engine (RICE 4Z) Rule Robin Barrows Supervisor, Allied Programs Branch Planning Section Division of Air Quality Feb 19, 2013 - Outside Involvement Committee 1

2. Key Items / Changes Final Rule: January 30, 2013* Revisions to NSPS IIII and JJJJ for consistency Applies to existing and new engines located at Area and Major Sources Effective date: April 1, 2013 Compliance dates (Area Sources existing): ◦ May 3, 2013 for stationary CI engines (diesel) **majority of sources in NC** ◦ October 19, 2013 for stationary SI engines (gasoline and natural gas) Significant changes: ◦ Emergency engines ◦ Non-emergency engines used for peak shaving *78 FR 6674

3. Engines – Emergency / Peak Shaving Emergency Engines (Major & Area Sources) ◦ Unlimited operation during emergencies ◦ Otherwise limited to 100 hrs/yr  Prevention of power outage  More than 5% change in voltage  Maintenance and testing Peak Shaving (Area Sources) ◦ Existing emergency engines ◦ 50 hrs/yr (part of 100 hrs) ◦ May 3, 2014 ◦ may be extended w/more strict guidelines – currently under consideration

4. Outreach NC DAQ Compliance Extension Requests* ◦ Specific to non-emergency CI >300 hp engines subject to emission limits NC DAQ Email with links to EPA information EPA Free webinars [Feb 28, March 6, 14 & 19] http://www.epa.gov/ttn/atw/rice/2013webinars.h tml http://www.epa.gov/ttn/atw/rice/2013webinars.h tml Upcoming MCIC (NCMA) workshops March 14 & 21, 2013 *Requests cannot be approved after May 3, 2013