The Massachusetts hazardous waste regulations at 310 CMR 30.000 govern every business in the state that generates, stores, transports, treats, or disposes of hazardous waste.1Massachusetts Department of Environmental Protection. 310 CMR 30.000 Massachusetts Hazardous Waste Regulations The Massachusetts Department of Environmental Protection (MassDEP) runs the program under authority from the state Hazardous Waste Management Act, Chapter 21C.2General Court of Massachusetts. Massachusetts General Laws Part I Title II Chapter 21C – Massachusetts Hazardous Waste Management Act If you operate here, you follow the state rules rather than the federal RCRA regulations directly, and where Massachusetts is stricter, Massachusetts controls. Noncompliance can cost up to $25,000 per day and carry up to two years in prison.3Justia. Massachusetts Code Chapter 21C Section 10 – Violations; Presumption; Penalties; Injunction
Is Your Waste Actually Hazardous
Before anything else, you have to determine whether what you are throwing out qualifies as hazardous waste under 310 CMR 30.100.4Legal Information Institute. Massachusetts Code 310 CMR 30.302 – Determination of Whether a Waste Is Hazardous A waste is hazardous if it exhibits one of four characteristics or appears on one of MassDEP’s lists.
The four characteristics are ignitability (liquids with a flashpoint below roughly 140°F, excluding dilute alcohol solutions below 24% by volume, and solids that ignite through friction or spontaneous chemical change);5Legal Information Institute. Massachusetts Code 310 CMR 30.122 – Ignitability corrosivity (aqueous liquids at pH 2.0 or lower or 12.5 or higher, liquids that corrode steel faster than 6.35 mm per year, or materials that cause irreversible skin damage);6Justia. 310 CMR 40.0347 – Characteristics of Hazardous Material reactivity (unstable materials that can release heat, pressure, toxic gas, or explode on contact with water or other common substances); and toxicity, measured by the Toxicity Characteristic Leaching Procedure, which simulates rainwater passing through buried waste and tests whether contaminants leach above regulatory thresholds.7Legal Information Institute. Massachusetts Code 310 CMR 30.125 – Toxicity Characteristic (TC)
The lists are the F-list (wastes from common industrial processes like solvent degreasing), the K-list (residues from specific manufacturing operations such as pesticide production), and the P-list and U-list for discarded commercial chemical products. P-list chemicals are acutely hazardous, meaning dangerous in very small amounts.8Legal Information Institute. Massachusetts Code 310 CMR 30.130 – Lists of Hazardous Wastes
Two rules make the lists reach further than they first appear. Under the mixture rule, combining a listed hazardous waste with non-hazardous waste turns the whole mixture hazardous. Under the derived-from rule, residues from treating or disposing of a listed waste keep their hazardous status.9Legal Information Institute. Massachusetts Code 310 CMR 30.140 – When a Waste Becomes a Hazardous Waste A small amount of listed waste contaminates the entire batch it touches.
Some materials are excluded from 310 CMR 30.000 altogether under the exemptions in 310 CMR 30.104.10Legal Information Institute. Massachusetts Code 310 CMR 30.104 – Wastes Subject to Exemption From 310 CMR 30.000 The main ones are domestic sewage going to a publicly owned treatment works, household waste from normal residential activity, agricultural manure and crop residues returned to soil, fossil fuel combustion waste such as fly ash and slag, drilling fluids and produced waters from oil, gas, or geothermal operations, and containers that qualify as “empty” under 310 CMR 30.106. Check for an applicable exemption first; if one applies, the rest of the rules do not.
Which Generator Tier You Fall Into
Your monthly waste volume places you in one of three tiers, and each tier carries progressively heavier obligations.
- Very Small Quantity Generator (VSQG): less than 100 kilograms of hazardous waste per calendar month, never more than 1,000 kilograms on site at once, and no acutely hazardous waste at all. Even a trace amount of a P-list chemical disqualifies you.11Legal Information Institute. Massachusetts Code 310 CMR 30.353 – Very Small Quantity Generators
- Small Quantity Generator (SQG): less than 1,000 kilograms per month, less than one kilogram of acutely hazardous waste, and no more than 6,000 kilograms accumulated on site at any time.12Legal Information Institute. Massachusetts Code 310 CMR 30.351 – Small Quantity Generators
- Large Quantity Generator (LQG): 1,000 kilograms or more per month, or one kilogram or more of acutely hazardous waste in any calendar month. No upper limit.13Legal Information Institute. Massachusetts Code 310 CMR 30.340 – Large Quantity Generators
Crossing a threshold even once puts you in the higher tier for that month, with all of that tier’s requirements. Measure carefully and document what you measure.
What Generators Have to Do
Get an EPA ID Number First
Before any hazardous waste activity, you need an EPA identification number. You register as an industry user in RCRAInfo, file a Site Identification Form through the EPA’s myRCRAid portal, and wait for MassDEP approval.14Mass.gov. Hazardous Waste Generation and Generators The number stays with the facility for as long as it operates and ties every piece of hazardous waste paperwork back to the site.
On-Site Storage Time Limits
The accumulation clock starts the moment waste enters a container or tank. LQGs may store waste on site for up to 90 days without a separate storage license.13Legal Information Institute. Massachusetts Code 310 CMR 30.340 – Large Quantity Generators SQGs get 180 days but still cannot exceed 6,000 kilograms on site. Whichever limit hits first forces the shipment.12Legal Information Institute. Massachusetts Code 310 CMR 30.351 – Small Quantity Generators Every container must show the date accumulation began. If that date is missing, MassDEP treats the accumulation period as starting on the date the waste was generated, which can push you past the deadline immediately.
Container Rules and Weekly Inspections
Containers must be labeled “Hazardous Waste,” list the chemical contents, and state the primary hazards. Keep them closed except when adding or removing waste. Leave aisle space wide enough for emergency equipment to reach any container. Walk the storage area at least once a week and look for leaks, corrosion, or damage.
Contingency Plans and Training
LQGs must maintain a written contingency plan covering fires, explosions, and unplanned releases, and must designate an emergency coordinator with authority to commit facility resources. SQGs do not need a full written plan but must still have basic emergency procedures and trained employees.
SQGs must make sure everyone who handles hazardous waste is thoroughly familiar with the procedures their job calls for. LQG training is more formal: new employees must complete training within 90 days of hire, take an annual refresher, and cover handling techniques, inspection, maintenance, and emergency response. LQGs keep training records (name, job title, duties, training description) until the facility closes or for three years after the employee leaves, whichever is later.
Annual Fees and Biennial Reports
MassDEP charges annual compliance fees based on your generator status as of July 1. SQGs pay $645 and LQGs pay $3,880.14Mass.gov. Hazardous Waste Generation and Generators To change or cancel your status for the year, you must notify MassDEP before July 1, or you owe the full fee even if you stopped generating. VSQGs owe nothing.
SQGs and LQGs also file a biennial report covering the prior calendar year. The report lists every receiving facility and its EPA ID, every transporter used, the description and quantity of each waste shipped, and a narrative on waste reduction efforts.15Mass.gov. 310 CMR 30.000 Hazardous Waste Regulations – Section 30.332 MassDEP expects concrete reduction steps with measurable results against prior years, not boilerplate.
Shipping Waste Off Site
Hazardous waste leaving your facility must travel with a licensed transporter and a Uniform Hazardous Waste Manifest, EPA Form 8700-22.16US EPA. Uniform Hazardous Waste Manifest Instructions, Sample Form and Continuation Sheet You sign it as the generator, the transporter carries it with the shipment, and the receiving facility signs on delivery. A completed copy comes back to you as proof of disposal.
Any company hauling hazardous waste on Massachusetts roads needs a MassDEP transporter license, backed by at least $1 million in auto liability insurance per accident, a $10,000 letter of credit or bond, DOT training for all drivers, and a clean enforcement record.17Mass.gov. Hazardous Waste Transportation and Transporters Transporters must move waste directly from the generator to the designated facility, with limited exceptions for weather, breakdowns, and planned multi-stop pickups.18Legal Information Institute. Massachusetts Code 310 CMR 30.408 – Hazardous Wastes in Transit If anything spills in transit, the transporter must act immediately to protect public health, notify state authorities, and clean the area.
The EPA’s e-Manifest system handles most filings now. For fiscal year 2026, fully electronic submissions cost $5.00 per manifest, combined data-and-image submissions cost $7.00, and image-only scanned paper submissions cost $25.00.
The Universal Waste Shortcut
Five common materials qualify for a lighter-touch track called universal waste, and Massachusetts follows the federal list without adding its own categories:19US EPA. State Universal Waste Programs in the United States batteries, pesticides, mercury-containing equipment, lamps (fluorescent tubes, HID bulbs, similar lighting), and aerosol cans.
Universal waste can sit on site for up to a year, ships without a hazardous waste manifest, and does not require a licensed hazardous waste hauler.20US EPA. Universal Waste Just as useful, universal waste does not count toward your monthly generation total. A facility whose only hazardous output is spent batteries and burned-out fluorescents is not pushed into SQG or LQG status by those materials alone. You still have to label the containers, prevent releases, and send the material to a facility permitted to handle it.
If You Treat, Store, or Dispose on Site
Running a treatment, storage, or disposal facility (TSDF) is a different regulatory world. Licensing under 310 CMR 30.500 evaluates groundwater monitoring, physical security, personnel qualifications, and facility design,21Legal Information Institute. Massachusetts Code 310 CMR 30.501 – Applicability and requires financial assurance sufficient to pay a third party to close and monitor the site even if the operator goes bankrupt. Public notice and comment periods are built into the process. For most generators, the practical takeaway is that the 90-day and 180-day accumulation windows exist precisely so you do not need a TSDF license. Hold waste longer than that and you cross into TSDF territory.
Penalties
Anyone who violates Chapter 21C or a regulation, order, or license issued under it can face up to $25,000 per violation, up to two years in prison, or both.3Justia. Massachusetts Code Chapter 21C Section 10 – Violations; Presumption; Penalties; Injunction Civil penalties can also reach $25,000 per violation. Each day a violation continues is a separate offense, so a facility storing waste 30 days past its limit can be charged 30 times over. MassDEP can also seek injunctive relief forcing the facility to stop operations or take corrective action.