Internal combustion engines
Stationary internal combustion engines are often used for backup or emergency power at a wide range of industrial, commercial and retail establishments. Combustion of diesel fuel oil or natural gas creates air pollution, while storage of large quantities of fuel oil presents spill containment and clean up issues. This section provides resources to help businesses using internal combustion engines comply with environmental regulations.
Air permits for engines
Combustion Sources and Air Pollution Construction Permits (AM-427) — A fact sheet describing the air pollution construction permit program and how it affects combustion sources; including calculation examples, definitions and contacts for more assistance.
Air pollution regulations
The EPA published new rules in 2010 aimed at limiting emissions from stationary engines. In January 2013, the EPA finalized revisions to these standards. The requirements vary depending on engine size, age and type of fuel burned. The following fact sheets summarize each rule's applicability and requirements.
- NESHAP for Stationary RICE at Area Sources (AM-511) applies to existing, new and reconstructed stationary engines (both CI and SI).
- NSPS for Stationary Compression Ignition Engines at Area Sources (AM-512) applies to new, modified and reconstructed CI engines.
- NSPS for Stationary Spark Ignition Engines at Area Sources (AM-513) applies to new, modified and reconstructed SI engines.
- In addition to the federal regulations, there are other Wisconsin Air Regulations Applicable to RICE at Area Sources (AM-514).
- This Reciprocating Internal Combustion Engine (RICE) Data Sheet (AM-515) lists the information you will want to gather on your engine before determining which rule(s) applies or contacting DNR for assistance.
- ICE Reg Nav is a new EPA tool for SI and CI engines subject to the NESHAP and NSPS rules. The user is asked a series of questions, which produces a printout of regulatory requirements for a specific engine.
- The EPA provides links to the federal engine rules on the page Controlling Air Pollution from Stationary Engines.
- The Combustion Portal Stationary Reciprocating Internal Combustion Engines (RICE) website is another good source of information about the federal rule.
- The RICE NESHAP Tool allows users to input engine information and will display the requirements for different types/sizes of engines.
Used oil management, spill prevention and cleanup
In order to prevent fuel spills or clean up after a fuel spill, there are a number of regulations a business with an internal combustion engine/generator set should follow.
- The EPA requires that facilities with a certain amount of oil on site prepare a Spill Prevention, Control and Countermeasure (SPCC) Plan. For more information on those requirements go to EPA's Oil Spills Prevention and Preparedness Regulations.
- In case of a spill, review the Spills webpage for small businesses.
- If your facility conducts oil changes as part of engine maintenance, review the recycling motor oil, oil filters and other automotive products webpage on how to properly dispose of used motor oil and related products.