Want to understand more about the documentation involved in regulatory compliance? When you’re viewing regulatory documents, you’ll likely come across a number of different acronyms.
Understanding what they mean can help you understand the testing process and keep your business complaint with regulations. Five of the most common acronyms include:
- RICE (Reciprocating Internal Combustion Engines)
- NESHAP (National Emission Standards for Hazardous Air Pollutants)
- NSPS (New Source Performance Standards)
- PTI / PTIO (Permit to Install / Permit to Install and Operate)
- RATA (Relative Accuracy Test Audit)
At Impact Compliance & Testing, we help businesses across the Midwest achieve and maintain regulatory compliance. Contact us today for more information on our services.
5 Key Acronyms in Regulatory Compliance Documents
For facility owners, environmental permits can be complex to decipher, with acronyms that look like a meaningless jumble of letters. However, these acronyms represent the legal framework that determines whether your facility is complainant or facing a shutdown.
Understanding what these acronyms refer to can help you translate federal and state mandates into actionable maintenance and testing plans.
1. RICE (Reciprocating Internal Combustion Engines)
Reciprocating Internal Combustion Engines (RICE) are stationary engines used for power generation, gas compression, or emergency backup. It’s a broad category that fits almost any piston-driven engine, so it’s likely your facility may have one. These engines fall under specific federal oversight no matter what type of fuel they run on.
In states with high levels of industrial manufacturing, the Environmental Protection Agency (EPA) focuses heavily on regulating these engines. They’re potential sources of hazardous air pollutants, making it essential to follow all regulations.
2. NESHAP (National Emission Standards for Hazardous Air Pollutants)
The National Emission Standards for Hazardous Air Pollutants (NESHAP) are standards related to specific pollutants known to cause health issues.
These rules provide guidance on how to manage your RICE engines. Regulations depend on the age of the engine and whether or not your facility is determined to be a Major Source or Area Source of pollution.
NESHAP compliance requires strict record-keeping of your engine’s run times, as well as maintenance logs to prove you aren’t exceeding the limits for toxins and pollutants.
3. NSPS (New Source Performance Standards)
New Source Performance Standards (NSPS) standards provide regulations on the technology of the engines themselves, not their output.
These rules cover new construction engines or modifications to old engines. They dictate the specific emissions technology that must be built-in to the machines, and also require periodic performance tests. These tests prove whether the engines still meet their factory-rated emissions.
If your engines are older or not meeting the same standards, you may have to replace them with newer models.
4. PTI / PTIO (Permit to Install / Permit to Install and Operate)
PTI or PTIO stands for Permit to Install and Permit to Install and Operate. They are the state-level license you need in order to operate your equipment. Before you even set up your facility, you’ll need to obtain one or both of these permits.
Depending on your state, there are different versions of these permits. They outline how many hours your facility can run, as well as what your specific emission limits are. NESHAP and NSPS requirements are usually included in these state permits.
5. RATA (Relative Accuracy Test Audit)
Relative Accuracy Test Audit (RATA) refers to the calibration check for your facility’s continuous monitoring systems.
Your PTI or PTIO permit may require you to have a Continuous Emissions Monitoring System (CEMS), which records data 24/7. If you have one of these systems, you’ll need a RATA to ensure the machine is accurate. Not having a RATA can invalidate your emissions data and lead to massive fines.
Contact Us for Expert Help with Regulatory Compliance
If you want to guarantee your facility’s regulatory compliance with local, state, and federal regulations, contact Impact Compliance & Testing. With over 70 years of combined experience, our environmental consulting company provides highly-accurate tests, comprehensive testing, and licensing help.
Based in Farmington Hills, MI, we serve facilities in Michigan, Ohio, Illinois, Indiana, and Pennsylvania.
Ready to get started? Call (734) 464-3880 or contact us online today to learn more about our services.

