- Offensive waste is non-clinical, non-infectious waste that's simply unpleasant, such as sanitary towels, nappies and incontinence pads.
- It's usually classified under European Waste Catalogue codes 18 01 04 or 20 03 99.
- It's collected in yellow bags with a black "tiger" stripe, and must go to a licensed waste carrier.
- It is not the same as clinical or infectious waste, which is hazardous and handled differently.
- Producing it triggers a legal duty of care over how it's stored and collected.
What offensive waste actually is
Offensive waste is non-clinical waste that isn't infectious and doesn't contain dangerous substances, but is unpleasant to handle. Think sanitary towels, tampons, nappies, incontinence pads and the contents of a washroom sanitary bin. It won't make anyone ill, but nobody wants it sitting in an open bin.
In the UK it's a defined category, usually classified under European Waste Catalogue (EWC) codes 18 01 04 or 20 03 99. That classification matters, because it decides how the waste is bagged, stored and collected.
Is sanitary waste offensive waste?
Yes. Sanitary waste from a workplace washroom is the textbook example of offensive waste. It's hygiene waste that's non-infectious, so it doesn't need the strict controls that apply to clinical waste, but it still can't go in your general refuse or be poured down a drain.
That's the reason you can't just empty a sanitary bin into the normal bin bag. The waste needs to leave your premises through a licensed route, with a paper trail behind it.
Not sure your current disposal is compliant? Compare washroom quotes from one vetted, licensed local provider, free.
Colour coding: the tiger-stripe bag
UK waste follows a colour code so it can be sorted at a glance. Offensive waste goes in yellow bags with a black stripe, widely known as "tiger" bags. That's your quick visual test: if a provider is collecting your sanitary waste in tiger-striped sacks, it's being handled as offensive waste, which is correct.
Plain orange bags, by contrast, are for infectious clinical waste. If a supplier is putting standard sanitary waste into orange clinical bags, you may be paying clinical-waste prices for waste that doesn't need it.
How it differs from clinical waste
The line is infection risk. Clinical waste is potentially infectious or hazardous, such as used dressings from a treatment room, sharps, or anything contaminated with a known infection. It's controlled far more tightly and costs more to dispose of.
Ordinary sanitary waste from an office, shop, restaurant or gym washroom carries no such risk, so it sits in the lighter-touch offensive category. The exception is waste from someone with a known infection, which can be reclassified. For the vast majority of workplaces, sanitary waste is offensive waste, full stop.
How offensive waste must be disposed of
Three things have to be true:
- It's collected by a waste carrier registered with the Environment Agency (or SEPA in Scotland, Natural Resources Wales in Wales).
- It's stored safely and separately in the meantime, which in practice means a proper lined sanitary bin, serviced on a schedule.
- There's a waste transfer note recording each collection, kept for at least two years.
Miss those and you're exposed under duty-of-care rules, even if the waste itself is harmless.
What this means for your business
If you provide toilets, you produce offensive waste, and you're legally responsible for how it's handled right up to final disposal. That responsibility doesn't transfer to your provider just because they take the bags away. It's shared, and it's on you to use a licensed one and keep the paperwork.
The practical answer is boring but effective: a sanitary bin service from a licensed provider, on a frequency that suits your footfall, with transfer notes on file. That's the whole job.
Frequently asked questions
Is offensive waste hazardous?
No. Offensive waste is non-hazardous and non-infectious. It's classed separately from hazardous and clinical waste precisely because it carries no infection or chemical risk. It still has to be disposed of through a licensed route.
What EWC code is sanitary waste?
Workplace sanitary waste is usually coded 18 01 04 or 20 03 99 under the European Waste Catalogue. Your waste carrier will confirm the code they use on your transfer notes.
Can I put sanitary waste in the general bin?
No. It has to be separated as offensive waste and collected by a licensed carrier. General waste collections aren't a compliant route for it, and doing so breaches your duty of care.
What colour bag is offensive waste?
Yellow with a black stripe, often called a tiger-stripe bag. Orange bags are for infectious clinical waste, which is a different and more tightly controlled category.