On 12 July 1946, the Coal Industry Nationalisation Act received royal assent. From then on, the costs of maintenance and improvement of mines (£520 million), and of compensation to the former owners (£229 million) were allocated to the state budget. In 1947, the entire coal industry became subordinated to the National Coal Board that was created by the government. 42 regional coal offices became subordinated to 9 district coal offices, while coal trade remained in private hands.

The coal industry was a major issue in post-war Britain. The technical capacity of the industry, which regularly reported a high level of accidents and fatalities, was poor; coal demand was falling due to the shift to oil and electricity. Coal had lost its strategic importance; the coal and steel economy was becoming a thing of the past.

At the same time, issues facing the industry triggered intense social unrest. There were 958 underground mines in the country with over 700,000 people working in the coal industry. The hazardous work was greatly underpaid and trade unions were constantly making new demands that private owners could not meet. As early as 1946, it was clear that the industry had to be phased out. In 1980, coal industry workers went on the longest and most intense strike in British history.

Currently, only 8,000 people are employed in coal mines in Great Britain.

Source: 

Dany Rodrik. Industrial Policy for the Twenty-First Century / D. Rodrik. - Centre for Economic Policy Research // CEPR Discussion Paper. - 2004. - № 4767.