TRPR and TPD regulations explained

 

complete UK vaping compliance guide 

 

(2026)

 

If you buy, sell, or manufacture vaping products in the United Kingdom, understanding TRPR and TPD regulations is essential. These rules govern everything from the nicotine strength in your e-liquid to the size of your tank and what warnings must appear on packaging. This guide explains exactly what TRPR and TPD are, what they require, how they differ, and what they mean for UK vapers and retailers in 2026.

In this guide

What is TPD (Tobacco Products Directive)?
What is TRPR (Tobacco and Related Products Regulations)?
TRPR vs TPD — key differences after Brexit
The core TRPR rules for vaping products in the UK
E-liquid regulations under TRPR
Device and tank regulations under TRPR
Packaging and labelling requirements
Notification and registration obligations
Advertising and promotion rules
What TRPR means for UK vapers
Frequently asked questions

What is TPD (Tobacco Products Directive)?

The Tobacco Products Directive (TPD) — formally EU Directive 2014/40/EU — is a piece of European Union legislation that sets minimum safety and quality standards for tobacco and nicotine-containing products sold across EU member states. It was revised in 2014 and came into force across the EU in May 2016.

The TPD was the first piece of major legislation to specifically address electronic cigarettes and e-liquids at a supranational level, introducing limits on nicotine concentration, tank capacity, and e-liquid bottle sizes, along with mandatory health warnings and ingredient notifications.

The TPD no longer applies directly in the United Kingdom following Brexit. The UK implemented its own equivalent — TRPR — which largely mirrors the TPD but is now independently governed by UK authorities.

What is TRPR (Tobacco and Related Products Regulations)?

The Tobacco and Related Products Regulations 2016 (TRPR) is the UK's domestic implementation of the EU TPD. It came into force on 20 May 2016 and applies to the manufacture, sale, and supply of tobacco products, herbal smoking products, electronic cigarettes, and refill containers (e-liquids) in the United Kingdom.

TRPR is enforced by the Medicines and Healthcare products Regulatory Agency (MHRA) and administered through local Trading Standards authorities. It is the primary regulatory framework that all UK vape retailers, manufacturers, and importers must comply with.

Since Brexit, TRPR has been retained in UK law under the European Union (Withdrawal) Act 2018 and continues to be updated independently of EU changes. Products sold in Great Britain must comply with TRPR; products sold in Northern Ireland may need to comply with both TRPR and the EU TPD depending on the nature of the product and applicable trade arrangements.

TRPR vs TPD — key differences after Brexit

For most practical purposes, TRPR and the EU TPD are near-identical in their product requirements. The key divergence is in administration and enforcement — products must now be notified to the MHRA rather than to EU member state authorities, and UK-specific labelling rules apply.

Area    UK TRPR    EU TPD
Enforcing authority    MHRA + Trading Standards    EU member state authorities
Notification portal    MHRA submission portal    EU-CEG portal
Max nicotine concentration    20 mg/ml    20 mg/ml
Max e-liquid bottle (nicotine)    10 ml    10 ml
Max tank/pod capacity    2 ml    2 ml
Health warning coverage    30% of packaging    30% of packaging
Applies in NI    Yes (plus potentially EU TPD)    Via Windsor Framework
The core TRPR rules for vaping products in the UK

TRPR sets out strict requirements that every vaping product legally sold in the UK must meet. These cover nicotine content, device capacity, ingredient safety, labelling, and how products are notified to the regulator.

MAX NICOTINE STRENGTH

20 mg/ml

No e-liquid containing nicotine may exceed 20 mg/ml (2%) concentration.

MAX E-LIQUID BOTTLE SIZE

10 ml

Nicotine-containing e-liquid must be sold in bottles no larger than 10 ml.

MAX TANK/POD CAPACITY

2 ml

Tanks, pods, and cartridges that contain nicotine liquid must hold no more than 2 ml.

CHILD-RESISTANT PACKAGING

Required

All e-liquid bottles must be child-resistant and tamper-evident.

HEALTH WARNING

30%

A health warning must cover at least 30% of each of the two largest surfaces of the packaging.

MINIMUM AGE TO BUY

18+

Retailers must not sell vaping products to anyone under 18 years of age.

E-liquid regulations under TRPR

E-liquids containing nicotine are among the most tightly regulated products under TRPR. The following rules apply to every nicotine-containing e-liquid sold in the UK:

Nicotine concentration cap

No e-liquid containing nicotine may be sold at a concentration greater than 20 mg/ml. This cap applies to all formats — 10 ml bottles, prefilled pods, and refillable pod e-liquid. Shortfill e-liquids (which contain zero nicotine) are exempt from the 10 ml bottle limit but are still subject to other TRPR requirements once a nicotine shot is added.

Bottle size limit

Nicotine-containing e-liquid may only be sold in containers of up to 10 ml. This is why nic salt e-liquids in the UK are sold in 10 ml bottles. Shortfills — which are zero-nicotine e-liquids sold in larger bottles — comply with this rule because they contain no nicotine at the point of sale.

Ingredients restrictions

E-liquids must not contain certain prohibited substances, including vitamins and other additives that create the impression the product has health benefits, colourants, caffeine, taurine, or other stimulants associated with energy products, and flavourings whose use in food products is prohibited. All ingredients must be of high purity and manufacturers must demonstrate that the e-liquid, when heated, does not produce harmful substances at levels likely to pose a risk to human health.

Child-resistant and tamper-evident packaging

Every e-liquid bottle containing nicotine must be sealed with child-resistant closures (CRC) and must be tamper-evident. This applies regardless of bottle size.

Shortfill note: Shortfill e-liquids sold in 50 ml, 60 ml, or 100 ml bottles do not contain nicotine at the point of sale and are therefore not subject to the 10 ml bottle size limit. However, once a nicotine shot is added by the consumer, the resulting mixture must comply with the 20 mg/ml concentration cap.

Device and tank regulations under TRPR

TRPR places specific restrictions on the hardware — the devices, tanks, pods, and cartridges — as well as the e-liquid they contain.

Tank and pod capacity

Tanks, pods, and cartridges that are designed to contain or deliver nicotine-containing e-liquid must have a capacity of no more than 2 ml. This is why all UK-compliant pod kits, including prefilled pods and refillable pod kits, have a maximum pod capacity of 2 ml. Devices with tanks larger than 2 ml can only legally be sold if they are designed for use with nicotine-free e-liquids.

Leak-proof design requirements

Devices must be designed and manufactured to be leak-proof during normal use and to have a mechanism for refilling without leakage (for refillable devices). The filling mechanism must prevent accidental leakage during refilling.

Consistent and stable nicotine delivery

Devices must deliver nicotine doses at consistent and stable levels under normal conditions of use. This requirement means all UK-compliant devices must have been tested to confirm they deliver nicotine within consistent parameters throughout the life of the pod or tank.

Safety protections

Devices must include protection against overheating and over-pressurisation, must not be susceptible to breakage or leakage under normal conditions of use, and must not produce harmful substances at elevated levels due to a malfunctioning heating mechanism.

Packaging and labelling requirements

Every UK-compliant vaping product must carry specific information on its packaging. Non-compliance with labelling rules is one of the most common regulatory violations identified by Trading Standards.

Mandatory health warning

The health warning "This product contains nicotine which is a highly addictive substance" must appear on both of the two largest surfaces of the packaging and must cover at least 30% of the surface area of each. The warning must be in the font Helvetica bold and must be printed in black on a white background (or white on black if the background is dark). It must not be obscured, distorted, or covered.

Ingredient listing

Packaging must include a list of all ingredients, listed in descending order by weight, along with the nicotine content and strength per dose, batch number, and a recommendation to keep the product out of reach of children.

Producer information

The name and address of the manufacturer or importer must appear on the packaging. For products imported into the UK, a UK-based responsible person must be named.

Non-compliant labelling: Products sold without the mandatory health warning, with a health warning that covers less than 30% of the packaging surface, or with missing ingredient information are illegal to sell in the UK. Trading Standards have the power to seize non-compliant stock and issue fines.

Notification and registration obligations

Before any nicotine-containing product or device can be placed on the UK market, it must be notified to the MHRA at least six months in advance of its intended market entry date. This requirement applies to manufacturers, importers, and distributors placing new products on the market.

What must be notified

Notifications must include a full list of all ingredients and their quantities, toxicological data for all ingredients and combustion products, nicotine dose and uptake information, a description of the production process, and a declaration that the manufacturer takes full responsibility for the product's quality and safety.

Annual reporting

Manufacturers and importers of e-cigarettes and e-liquids must submit an annual report to the MHRA covering sales volumes broken down by brand and flavour, preferences of various consumer groups including young people, methods of sale, and any adverse health effects reported.

Withdrawal obligations

If a manufacturer or importer has reason to believe a product poses a risk to human health, they must immediately inform the MHRA and withdraw the product from the market. This is a mandatory recall obligation, not a discretionary one.

Advertising and promotion rules

TRPR places strict limitations on how vaping products may be advertised and promoted in the UK. These rules are among the most restrictive of any consumer product category.

Television and radio advertising of nicotine-containing vaping products is prohibited
Print advertising in publications not directed primarily at professionals in the tobacco or vaping industry is prohibited
Sponsorship of events with a cross-border dimension is prohibited
Advertising must not encourage non-smokers or minors to start vaping
Claims that a vaping product is healthier or safer than tobacco may only be made if authorised by the MHRA as a medicinal product
Online advertising is restricted and must comply with CAP (Committee of Advertising Practice) codes, which prohibit targeting under-18s
What TRPR means for UK vapers

For everyday vapers buying products in the UK, TRPR compliance has a direct impact on what products are legally available and what you can expect from them.

All e-liquids with nicotine are capped at 20 mg/ml — you will not find higher-strength nic salt liquids legally sold in UK vape shops
All pods and tanks hold a maximum of 2 ml — this is why pod kits feel like they need refilling or replacing frequently compared to sub-ohm tanks used with nicotine-free shortfills
Every product legally on sale will carry the health warning on its packaging — if a product lacks this, it may not be compliant
Products labelled "TPD compliant" or "TRPR compliant" have been notified to the MHRA and meet UK safety standards
Buying from reputable UK retailers ensures you're receiving products that have passed the six-month notification process and ingredient safety review

As a consumer: You are not personally required to comply with TRPR — the obligations fall on manufacturers, importers, and retailers. However, buying products that carry the health warning and are sold by reputable UK retailers gives you confidence that what you're vaping has met UK safety notification requirements.

Frequently asked questions

What does TPD compliant mean on a vape product?

A product described as TPD compliant (or TRPR compliant in a UK context) has been manufactured to meet the product standards set out in the Tobacco Products Directive and/or UK TRPR — including the 2 ml tank limit, 10 ml bottle limit, 20 mg/ml nicotine cap, and mandatory labelling requirements. The product will also have been notified to the relevant regulatory authority before going on sale.

Why can I only buy 10 ml e-liquid bottles in the UK?

Nicotine-containing e-liquids are limited to 10 ml bottles under TRPR. This rule exists to reduce the risk of nicotine poisoning by limiting the volume of concentrated nicotine liquid in a single container. Shortfill e-liquids (which contain no nicotine) are sold in larger bottles and are exempt from this restriction.

Why are vape pods limited to 2 ml in the UK?

The 2 ml tank and pod capacity limit is set by TRPR and applies to all containers designed to hold nicotine-containing e-liquid. The limit is designed to reduce overall nicotine consumption per unit and is part of a wider set of consumer safety measures. Tanks and pods used with nicotine-free liquids are not subject to this restriction.

Does TRPR still apply after Brexit?

Yes. TRPR was retained in UK law following Brexit and continues to apply across Great Britain. The EU TPD no longer applies directly in Great Britain, but TRPR mirrors its core product standards. In Northern Ireland, additional considerations apply under the Windsor Framework.

Who enforces TRPR in the UK?

The MHRA (Medicines and Healthcare products Regulatory Agency) is responsible for the notification and registration scheme. Day-to-day retail compliance — such as checking age verification, labelling, and product standards — is enforced by local Trading Standards authorities.

Can I buy vaping products online from the EU for personal use after Brexit?

Importing nicotine products for personal use from the EU is technically subject to customs duties and import regulations, but small personal-use quantities are generally tolerated. However, any EU retailer shipping nicotine-containing products to a UK address should be complying with TRPR, not just the EU TPD, if they are marketing to UK consumers.

Are disposable vapes and prefilled pod kits subject to TRPR?

Yes. All nicotine-containing vaping products — including disposable vapes, prefilled pod kits, and their replacement pods — must comply with TRPR. This includes the 2 ml pod capacity limit, 20 mg/ml nicotine cap, mandatory health warnings, and MHRA notification. Products sold in the UK without these compliance markers are illegal.

What is the health warning that must appear on vape packaging?

The mandatory TRPR health warning reads: "This product contains nicotine which is a highly addictive substance." It must cover at least 30% of the two largest surfaces of the product's packaging, printed in Helvetica bold, black on white (or white on black for dark packaging), and must not be obscured in any way.