If your factory uses solvents — for cleaning, extraction, coating or synthesis — the spent solvent you generate is hazardous waste under Indian law. The rules that govern it are the Hazardous and Other Wastes (Management and Transboundary Movement) Rules, 2016, made under the Environment (Protection) Act, 1986. This guide explains what those rules require of you as a generator, in plain language.

Who the rules apply to

The 2016 Rules apply to anyone who generates, collects, stores, transports, recycles, recovers or disposes of hazardous waste. The rules call the waste generator the "occupier". If spent solvent leaves your gate, you are an occupier and the rules apply to you — regardless of your factory's size.

Spent and contaminated solvents appear in Schedule I of the Rules, the list of processes that generate hazardous waste. So spent Toluene, MDC, IPA, Ethyl Acetate and similar streams are hazardous waste by definition, not by choice.

The rules are enforced by your State Pollution Control Board — the MPCB in Maharashtra and the GPCB in Gujarat — with the CPCB setting national guidelines and standard operating procedures.

Your five main duties as a generator

1. Get authorization

Every occupier handling hazardous waste must obtain authorization from the State Pollution Control Board. You apply in Form 1, and the Board grants authorization in Form 2, typically valid for up to five years. Most SPCBs now accept applications through their online consent portals.

The authorization specifies which waste categories you may handle and in what quantity. Operating without it — or outside its terms — is a violation in itself.

2. Store safely, and not for too long

Spent solvent waiting for pickup must be stored safely: sound, sealed, labelled containers in a designated area. The rules generally cap on-site storage at ninety days. If your solvent generation is slow, plan pickups so drums do not sit past the limit; extensions are possible in specific cases but only with the Board's approval.

3. Send waste only to authorized parties

You may hand over spent solvent only to a party authorized to receive it — an authorized recycler, an actual user with permission to utilise the waste, or a treatment and disposal facility. Utilisation of hazardous waste as a resource needs specific permission from the SPCB, based on CPCB standard operating procedures. Selling to an unauthorized trader does not transfer your liability; it multiplies it. (See our guide on verifying a buyer's MPCB authorization.)

4. Use the manifest for every movement

Every consignment of hazardous waste that leaves your factory must travel with a manifest — the movement document in Form 10. The manifest is prepared in seven colour-coded copies distributed among the sender, the transporter, the receiver and the pollution control boards. Copies come back to you and to the Board once the waste is received, closing the loop.

This is the "cradle-to-grave" principle in action: the paperwork proves your waste actually reached an authorized destination, and did not end up in a drain or an open plot with your name still attached to it.

5. Keep records and file annual returns

You must maintain a running record of hazardous waste generated, stored and dispatched (in Form 3) and file an annual return in Form 4 with the State Board on or before 30 June for the previous financial year. A good buyer makes this easy by giving you clean documentation for every pickup.

What non-compliance costs

The Environment (Protection) Act was amended by the Jan Vishwas (Amendment of Provisions) Act, 2023, which replaced imprisonment for most violations with steep monetary penalties. Contraventions can attract penalties starting around ₹1 lakh and extending to ₹15 lakh, with further penalties for every day a violation continues.

Money is not the only exposure:

Liability for damage. If your waste causes pollution, you can be made to pay for remediation — even if a trader, not you, dumped it.
Consent trouble. Non-compliance surfaces during consent renewals and Board inspections.
Reputation. Environmental violations are public and increasingly checked by customers and auditors.

The practical takeaway

Compliance with the 2016 Rules comes down to a simple habit: segregate your spent solvent, store it properly, sell it only to an authorized buyer, and keep the paperwork for every movement. An authorized buyer handles the manifest, compliant transport and documentation as part of the service — so the legal burden on your team stays small.

VC Solutions buys spent solvents across Maharashtra and Gujarat through MPCB-authorized partners, with compliant pickup and full documentation. Contact us for a quote.

Frequently asked questions

Is spent solvent really "hazardous waste" even if we could reuse it?

Yes. Classification depends on what the material is, not on whether it has value. Spent solvents fall under Schedule I of the 2016 Rules. The good news: because they are recoverable, authorized buyers pay you for them instead of charging a disposal fee.

We generate only a few drums a year. Do the rules still apply?

Yes. The rules do not have a small-generator exemption. Small quantities mainly change the logistics — you can accumulate up to the storage limit and schedule fewer pickups — not the legal requirements.

Who fills out the Form 10 manifest — us or the buyer?

The sender (your factory) signs the manifest, but in practice an authorized buyer prepares the paperwork and brings it at pickup. You keep your copies as proof the waste went to an authorized destination.

What if we have been selling spent solvent informally until now?

Stop, and regularize. Apply for authorization through your State Board's portal, and switch to an authorized buyer for future lots. Boards generally respond better to generators who come into compliance on their own than to those found out during an inspection.

Hazardous Waste Rules 2016: A Plain-Language Guide for Factories That Generate Spent Solvents