Councils are launching a crackdown on 'unauthorised picnics' in the park for the King's Coronation as residents are told they need to fill out paperwork before they plan celebrations.
Members of the public hoping to mark the historic occasion outdoors on May 6 will need to apply for advance permission in many areas, with North Somerset Council requiring a nine-page form and a risk assessment.
It follows a number of similar restrictions introduced to stop unregistered street parties going ahead, while restrictions on bunting will also be in force along some public roads.
Explaining what people will need to do before planning a picnic, North Somerset Council told MailOnline: "We will be able to allow a small number of Coronation picnics.
"Picnic applications should be made on the council's website. Each event can be for a maximum of 50 people and permission will be granted where possible."
A strict ban on barbecues will also be in place in the area.
Other local authorities to have put down strict measures aimed at public safety include Wiltshire, the London borough of Ealing, and Warwick District council, who will enforce BBQ restrictions in public parks.
Edinburgh City Council have meanwhile asked revellers not to hang bunting across any public roads open to traffic.
A risk assessment form meanwhile asks that a number of dangers including "sun stroke" are considered before organising street parties.
City of Edinburgh Council said it was in the process of amending the wording in its advice and said bunting could still be hung elsewhere.
A spokesman told the Scottish Daily Express: "Bunting is not banned but we're asking people not to hang it across public roads with traffic."
Cllr Gerald Vernon-Jackson, who chairs of the culture board at the Local Government Association, said the rules will be in place as councils "want people to be able to enjoy parties safely."
He added that applications should allow "sufficient time" to deal with the concerns from other members of the public.
Transport for London (TfL) have meanwhile urged people hoping to catch a glimpse of the King's procession in central London to "plan ahead" and allow more time for journeys than normal, as services will be extremely busy.
Temporary safety measures may be put in place such as queuing, closures, trains not stopping at certain stations or changes to the way people enter or leave a station.