In response to the developing
COVID-19 pandemic, the UK government issued advice to English schools on 12 March 2020 that they should cancel trips abroad, and on 16 March that the public should avoid non-essential travel, crowded places, and visits to care homes. This was followed by the closure of schools, colleges and nurseries from 21 March. On 21 March the government used emergency powers to make
business closure regulations, enforcing the closure in England of businesses selling food and drink for consumption on the premises, as well as a range of other businesses such as nightclubs and indoor leisure centres where a high risk of infection could be expected. Five days later the restrictions were made more extensive. On 26 March 2020 the even more stringent
Lockdown Regulations came into force. These became the principal delegated English legislation restricting freedom of movement, gatherings, and business closures, and were progressively relaxed on 22 April, 13 May, 1 June, and 13/15 June.
The No. 2 regulations of 4 July 2020 further relaxed the rules throughout most of England, apart from
City of Leicester and the surrounding area which became the subject of the first of a series of
local regulations. Between July and September 2020, more extensive and increasingly rigorous ad hoc local regulations were introduced, which in many areas proved unsuccessful in controlling spread of the virus. These were followed by the
first COVID-19 tier regulations (in effect 14 October – 4 November 2020), which placed each local authority area under one of three levels of restrictions. As infections increased in many areas, these were replaced by the more rigorous nationwide
second lockdown regulations (in effect 5 November – 1 December 2020). On 2 December 2020 these regulations revoked the second lockdown regulations, and reintroduced a countrywide three-tier legal framework. Later amendments introduced a fourth tier. ==Legal basis==