Duty of care for laboratory waste

Could you show the waste was kept safely?

The code expects you to stop waste escaping and to protect it from damage and interference. It specifically mentions limiting access to people authorised to handle it, because unauthorised additions can invalidate the waste description.

In a prep room, the honest evidence is simple. Waste awaiting collection sits in a marked, separate place within the locked store, and it appears as such on your stock list. A crate of unwanted bottles in the corridor outside the lab is the opposite of this, even for a week.

Keep it sorted too. A lab's acetone wash bottles and a discarded mercury thermometer do not belong in the same box, because they are different hazards with different handling. It is also unlawful to mix hazardous waste with other waste.

Could you show you described it accurately?

You must classify the waste and give the next holder an accurate written description. The code asks for what you can reasonably provide for safe handling, transport, treatment and disposal. In a lab, that means the code, the name of the substances, the process that produced them, and any problem the next person should know about.

Vague descriptions tend to come from good intentions. "Old chemicals from the store" feels honest when a new technician has inherited the shelves. It tells the driver and the receiving site nothing. Listing the bottles first takes time, and it removes most of the risk of a rejected load.

If something is unknown, write that it is unknown. An honest "unidentified, sealed brown bottle, approximately one litre, crystals at the cap, not moved" is an accurate description. It also tells everyone that a specialist has to look at it before anyone lifts it.

Could you show the collector was authorised?

This is the check that most often goes undone, and it takes minutes. The code tells you to check whether a person or business is authorised before you transfer waste to them, and to use the public register to check the evidence they give you.

In England you check the Environment Agency's public register or call 03708 506 506. In Wales you check the Natural Resources Wales register or call 0300 065 3000. Look at the following on the record:

• the exact legal name on the record, against the name on the consignment note
• the registration type, because a carrier, a broker and a dealer are different roles
• the expiry date, as upper tier registrations run for three years

Brokers deserve a separate word. Anyone arranging waste collection for you must be registered as a broker with their regulator, even if they never touch the waste. That applies to every firm in this market, ours included, so ask any of us for the number and look it up yourself. Using a broker also does not hand over your duty. The code says each party keeps its own responsibility.

Department for Education guidance adds a warning for schools and colleges in England: some companies operate illegally, offering hazardous waste disposal at discount prices. A surprisingly low price is a reason to look harder at the register.

Could you show you asked where it was going?

Your responsibility follows the waste. The code lists asking the next holder where they are going to take it, and checking that the destination is authorised, among the reasonable steps. Most people skip this because the carrier's name on the door feels sufficient.

Ask for the name and permit of the receiving site before the collection. The receiving site then sends you a consignee return confirming what it accepted. If that return never reaches you, chase it. Your copy of the note shows the collection happened and nothing more.

Could you find the paperwork in three years' time?

In England, the hazardous waste register also takes in consignee returns and related documents, such as carrier schedules and rejected-load records. Where a document is incomplete, you keep a note of what is missing.

Staff turnover is the usual enemy here. Consignment archives tend to live in one technician's filing cabinet or one waste officer's inbox. When that person retires or a department moves, the three-year trail goes with them. Multi-academy trusts face this at every conversion, and an NHS trust at every reorganisation. Store the archive centrally, by site and by date, and test yourself each year by trying to find a note from two years ago.

Who holds the duty in a school or hospital?

The duty sits with the organisation that holds the waste. In practice, responsibility works best when it is written down, with a technician or lab manager running the checks, and a named senior person who signs off the arrangements and reads the exceptions. In a trust or hospital group, make clear whether contracts are held centrally, because a central contract does not remove a site's need to keep its own waste secure and described.

Scotland and Northern Ireland have their own regulators and regulations. SEPA and DAERA both frame producer responsibility as a duty of care, so the same habits carry over, though the forms differ.

Those five questions are also the shape of a laboratory chemical disposal job done properly: an itemised list, the right codes, a registered carrier, a named destination and a note that comes back complete.