Organisations, such as the RSPCA, have published helpful guidance on making fireworks celebrations less frightening for pets and I welcome their work on this issue.
Police are able to issue penalty notices if there is a breach of the fireworks curfew. This curfew applies every night from 11 pm to 7 am, with exceptions for the specific festivals of Bonfire Night, New Year's Eve, Diwali and the Chinese New Year: these are all festivals where fireworks have traditionally been used in celebration. On those nights, the cut-off time is 1 am. Although there is some use of fireworks outside the traditional periods, the Government believes that the majority of people who use fireworks do so at the appropriate times of year and have a sensible and responsible attitude towards them. The Government has no current plans to extend this curfew or increase the penalties for breaking it, but if you do become aware of and disturbed by any breach of this law I would encourage you to notify the Police.
Excessive noise from fireworks, or noise during the curfew period, can be considered a statutory nuisance and local authority environmental health officers have the power to investigate complaints of fireworks noise and act to prevent it where appropriate.