Used oil disposal: How to stay compliant with EPA, OSHA, and your state
Used oil disposal is a critical issue for safety managers and shop supervisors in industrial settings. Whether your facility generates used oil from machinery, vehicles, or hydraulic systems, you must understand the regulatory requirements to ensure compliance and avoid hefty fines.
Used oil is not always considered hazardous waste, but improper handling, storage, or disposal can lead to regulatory violations and environmental hazards. Understanding how used oil is classified, when it is considered hazardous, and how to manage it in compliance with 40 CFR Part 279 is essential.
Let’s uncover the regulatory framework for used oil disposal, including storage requirements, transportation rules, and best practices to ensure compliance at both the federal and state levels.
What is used oil?
The EPA defines used oil as any petroleum-based or synthetic oil that has been used and is contaminated by physical or chemical impurities. Common sources of used oil in industrial operations include:
- Motor oil and lubricants from vehicle maintenance
- Hydraulic fluids used in heavy machinery
- Metalworking fluids and coolants
- Compressor oils used in air compression systems
According to EPA regulations (40 CFR Part 279), used oil is presumed to be managed under the less stringent used oil management standards unless it meets hazardous waste criteria.
Used oil becomes hazardous waste if:
- It is mixed with hazardous waste (e.g., solvents or heavy metals)
- It contains more than 1,000 parts per million (ppm) of total halogens, unless proven otherwise, or
- It is disposed of improperly, leading to environmental contamination.
If used oil is classified as hazardous waste, it must be managed in accordance with the applicable solid and hazardous waste requirements.
EPA requirements for used oil disposal
The EPA requirements for used oil consist of three different aspects, as outlined below.
1. Storage Requirements
Use leak-proof tanks and containers made of durable, non-earthen materials (e.g., steel, plastic, or concrete). Label all used oil containers with the words "Used Oil" to prevent misidentification. Prevent leaks and spills by using secondary containment systems and regularly inspecting tanks. Never mix used oil with hazardous waste unless authorized.
2. Transportation and Disposal
Used oil generators may transport up to 55 gallons of used oil to a registered collection center without an EPA ID number. If contracting a used oil transporter, ensure they have an EPA Identification Number.
Used oil must be:
- Recycled or re-refined into new oil.
- Burned for energy recovery in approved furnaces or boilers.
- Disposed of at an authorized hazardous waste facility if deemed hazardous.
3. Spill Prevention and Cleanup
Facilities storing large amounts of used oil must have a Spill Prevention, Control, and Countermeasure (SPCC) Plan. SPCC plans establish procedures, methods, and equipment requirements to prevent oil from reaching waterways, and to contain discharges of oil.
Any spills must be cleaned up immediately, and absorbent materials must be disposed of properly. Rags and shop towels contaminated with hazardous materials may be classified as hazardous waste.
OSHA regulations for handling used oil
While the EPA focuses on environmental compliance, OSHA (29 CFR Part 1910) regulates worker safety when handling used oil. Key OSHA requirements include:
1. Personal Protective Equipment (PPE)
Workers handling used oil must wear gloves and protective clothing to prevent skin exposure. Safety goggles or face shields are also important to avoid eye contact.
2. Hazard communication (HazCom) program
Employers must label all used oil containers with appropriate hazard information and train employees on safe handling procedures and emergency response.
3. Fire and Explosion Safety
Always store used oil away from ignition sources to prevent fire hazards. Ensure storage areas are ventilated to avoid vapor buildup.
State-Specific used oil disposal regulations
Many states have stricter used oil regulations than federal laws. For example:
- California classifies used oil as hazardous waste unless it meets specific recycling criteria.
- Texas requires additional storage permits for large generators.
- New York mandates annual reporting on used oil disposal activities.
To ensure compliance, check with your state’s environmental agency for state-specific used oil disposal rules and whether used oil is considered hazardous. Additional permits for transporting or processing used oil may be necessary.
Staying compliant with used oil disposal requirements
Ensuring compliance with EPA, OSHA, and state laws is essential for safety managers and shop supervisors handling used oil. By following proper storage, transportation, and disposal practices, businesses can reduce environmental risks, improve workplace safety, and avoid costly fines.
Key to remember: By staying informed and proactive, your facility can maintain safe, sustainable, and compliant used oil management practices.