TPD gets mentioned constantly on UK vape packaging and product pages, but it's often used as a vague stamp of approval rather than explained properly. TPD stands for the Tobacco Products Directive, and it's the specific piece of regulation behind the limits you'll have noticed across every compliant UK vape product, the 2ml pod capacity, the 20mg/ml nicotine cap, the 10ml refill bottle size.
It's also frequently confused with the newer 2025 disposable ban and the 2026 Tobacco and Vapes Act, which are separate pieces of legislation doing different jobs. Here's what TPD actually is, what it requires, and how it fits alongside everything else that's changed recently.
Where TPD actually comes from
"TPD" usually refers to Directive 2014/40/EU, the EU's Tobacco Products Directive, which became applicable across EU member states on 20 May 2016. It's worth being precise about this, because there was an earlier tobacco directive, from 2001, that covered only traditional tobacco products, cigarettes and roll-your-own tobacco specifically.
E-cigarettes and e-liquid were brought into scope for the first time by the 2014 directive, which is why "TPD" in a vaping context almost always means the 2014 version, not the earlier one.
Since the UK left the EU, this directive no longer applies here directly. Instead, its requirements were carried into UK law through the Tobacco and Related Products Regulations 2016 (TRPR), which the UK government has kept in force largely unchanged since Brexit. In practical terms, "TPD" and "TRPR" describe the same set of underlying requirements, TPD is the EU directive's name, TRPR is how the UK legally implements it, and UK vape packaging tends to still say "TPD compliant" since that's the more widely recognised term.
What TPD actually requires for e-cigarettes
Three limits come up constantly and are worth knowing precisely:
- Tank or pod capacity is capped at 2ml for nicotine-containing e-liquid. This is why every compliant pod, however high its advertised puff count, is built around this exact capacity limit, often paired with a separate refill container to reach a higher total.
- Nicotine strength is capped at 20mg/ml. No UK-legal nicotine-containing e-liquid can exceed this, regardless of brand or format.
- A separately sold nicotine-containing refill container is capped at 10ml. This is the other half of how higher-capacity kits legally work, a compliant 2ml pod paired with a compliant 10ml refill container.
Beyond these headline figures, TPD also requires manufacturers to notify products to the MHRA before sale, including a full ingredient breakdown, sets mandatory packaging and health warning requirements, and restricts certain forms of advertising for e-cigarettes.
Any UK-legal nicotine vaping product needs to clear all of this before it reaches a shop shelf, not just the capacity and strength figures most people have heard of.
Why these specific limits exist
The rationale behind TPD's e-cigarette provisions is to set a consistent minimum standard for safety and quality across a product category that, before 2016, had very little regulation at all.
Capping nicotine strength and capacity limits the amount of nicotine a single product can deliver before more liquid needs to be purchased separately, and the ingredient notification requirement means manufacturers can't simply add unlisted or unchecked substances to e-liquid.
None of this is about discouraging vaping specifically, it's the same kind of baseline consumer protection applied to most regulated consumer products, adapted to this category's specific risks.
TPD is not the same thing as the 2025 disposable ban or the 2026 Tobacco and Vapes Act
This is genuinely the most commonly confused part of UK vape regulation, and it's worth separating clearly, since these are three different pieces of legislation doing three different jobs.
TPD/TRPR sets ongoing product standards, capacity, nicotine strength, ingredient notification, packaging, and has applied since 2016. It's still in force today and governs every compliant product on the market right now.
The single-use vape ban, which took effect on 1 June 2025, is a separate, more recent piece of UK legislation banning the sale of single-use, non-rechargeable disposable vapes specifically. It doesn't change any of TPD's capacity or nicotine limits, it prohibits an entire product format outright, rechargeable, refillable, and prefilled-with-replaceable-pod devices remain legal and are built around exactly the same TPD limits described above.
The Tobacco and Vapes Act 2026 is newer still, addressing age of sale for vaping and nicotine products (extending the existing 18+ rule and closing a proxy-purchasing gap from 29 October 2026), bringing nicotine pouches under an age restriction for the first time, and setting out a future advertising and sponsorship ban for nicotine products from 1 June 2027. It doesn't touch TPD's capacity or nicotine strength limits either, it's aimed at who can buy these products and how they can be marketed, not what's inside them.
Put simply: TPD/TRPR governs what's inside a compliant product and how much of it there can be. The 2025 ban governs which product formats can be sold at all. The 2026 Act governs who can buy them and how they're marketed. All three currently apply at once, and none of them replaces the others.
How to check TPD compliance yourself
Rather than relying on a "TPD compliant" label alone, the MHRA publishes a public, searchable database of notified vaping products. Any UK-legal nicotine vaping product is required to appear on it before sale, which makes it the actual primary record if you want to verify a specific product rather than taking a brand's packaging claim at face value.
FAQ
What does TPD stand for?
The Tobacco Products Directive, specifically Directive 2014/40/EU, the EU directive that first brought e-cigarettes under regulation, and which the UK now implements through the Tobacco and Related Products Regulations 2016 (TRPR).
What's the difference between TPD and TRPR?
They describe the same underlying requirements. TPD is the EU directive's name, TRPR is the UK regulation that carries those requirements into UK law since Brexit.
Is TPD the same as the disposable vape ban?
No. TPD sets ongoing product standards like capacity and nicotine strength, and has applied since 2016. The 2025 ban is separate, newer legislation banning single-use disposable vapes specifically as a product format.
What's the maximum legal nicotine strength under TPD?
20mg/ml for any UK-legal nicotine-containing e-liquid.
Why do some vape kits hold more than the 2ml TPD limit?
They combine a compliant 2ml pod with a separately sold, compliant 10ml refill container, rather than exceeding the limit on a single pod.
How can I check if a specific product is genuinely TPD compliant?
The MHRA publishes a public database of notified vaping products. Checking a specific product against that database is more reliable than relying on packaging claims alone.
