The RICE NESHAP (40 CFR 63 Subpart ZZZZ) compliance dates for existing sources are approaching, and affected sources should be preparing for compliance. The RICE NESHAP was promulgated by EPA to control hazardous air pollutant (HAP) emissions from stationary reciprocating internal combustion engines (RICE). In 2010, EPA expanded the applicability of the rule to cover not only new engines (which are required to be certified as achieving EPA-mandated emissions standards) but also existing engines. The 2010 amended NESHAP applies to existing engines located at both major sources and area (minor) sources of HAPs. Types of engines covered include non-emergency engines used for power generation (including peak shaving), emergency backup power generators, and emergency fire pumps. Many of these engines are exempt from air quality permitting but are still subject to the RICE NESHAP.
Compression ignition (diesel fueled) engines have a compliance date of May 3, 2013, and spark ignition (natural gas and gasoline fueled) engines have a compliance date of October 19, 2013. Some emergency engines at residential, commercial, or institutional facilities may qualify for exemption from the rule, based on the classification of the facility.
Requirements of the RICE NESHAP include:
- Emissions control requirements for certain types of non-emergency engines.
- Operation and maintenance (O&M) and work practice requirements for emergency engines and certain types of non-emergency engines which are not subject to emissions control.
- Limits on maintenance and testing hours for emergency engines.
- Recordkeeping to demonstrate compliance with O&M and operating hour requirements.
Facilities with stationary (non-mobile) engines should take action now to prepare for compliance, including:
- Confirming your inventory of stationary engines and assessing applicability to each engine.
- Documenting the exemption status of residential, commercial, and institutional engines.
- Evaluating existing O&M procedures, including oil analysis programs, to determine if changes are needed.
- Updating recordkeeping logs.
EPS is assisting our clients with addressing these requirements. If you have questions or need assistance with the RICE NESHAP, contact your EPS consultant at (404) 315-9113.