Skip to content

Hertfordshire County Council

You need a licence to store:

  • products containing a net mass of 5kg to 2,000kg of explosives, like fireworks, safety cartridges and airbag detonators.
  • more than 15kg of small arms ammunition.
  New licence cost (1 year) Renewal cost (1 year)
Explosives licence (up to 250kg net mass)  £109  £54
Explosives storage licence (up to 2,000kg net mass)  £185  £86

Full price list.

If you're storing more than 2,000kg of explosives, you'll need a licence from the Health and Safety Executive.



You'll need to apply for an all year round fireworks licence if you intend to supply, or expose for supply, fireworks outside of the following dates:

  • The first day of Chinese New Year and the 3 days before it.
  • The day of Diwali and the 3 days before it.
  • Between 15 October and 10 November.
  • Between 26 December and 31 December.

This licence costs £500.

Email us to apply for a fireworks licence.

Trading Standards
Welwyn Garden City

Phone: 01707 292429


Public weighbridges

All public weighbridge attendants must hold a certificate of competence from the Chief Inspector of Weights and Measures.

Contact us to apply for a certificate:

Trading Standards
Welwyn Garden City

Phone: 01707 292429

After you apply
, we will test you on using your company's equipment, issuing tickets and keeping records.

For full details of the test requirements and your other responsibilities, please read our guidance notes for public weighbridge proprieters and attendants.

The certificate entitles you to use the specified equipment anywhere in the country. If you need to use a different type of equipment, please apply to be retested.


Sports grounds

We issue safety certificates for:

  • Sports stadiums with a capacity of 10,000 or more.
  • Premier and football league stadiums with a capacity of 5,000 or more.
  • Any covered sports stand with a capacity of 500 or more.

We can issue general safety certificates for ongoing activities (like football games) or special certificates for one-off events (like a music concert).

To request a new certificate or to see copies of existing certificates, contact our business advice team.