Nationalisation Act, of 1946, specifically exempted the Forest of Dean, due to its unique form of ownership and history, allowing Freemining privileges to continue intact. Some large colliery gales were subsequently compulsorily purchased by the National Coal Board (NCB), but these remained under the Freemining system, with a royalty paid to the Freeminers, by the NCB, as a share of the minerals extracted. The last of the NCB deep mines closed in 1965. Eligibility "All male persons born or hereafter to be born and abiding within the said Hundred of St Briavels, of the age of twenty one years and upwards, who shall have worked a year and a day in a coal or iron mine within the said Hundred of St Briavels, shall be deemed and taken to be Free Miners." the Dean Forest (Mines) Act 1838. This qualification has recently been challenged on the grounds of sex discrimination and although legal opinion advised that the 1838 Act was not subject to Equal Rights legislation, the Forestry Commissioners who act as Gaveller of the Forest of Dean made the decision to enter females onto the register for the first time in 2010. It is now understood that the qualification of "male", also incorporates "or female." The ancient administrative district, known as the "Hundred of St Briavels", is generally considered to be the whole of the statutory Forest of Dean and each parish adjoining it. And, as of 2010, the gender requirement has been recognised as archaic and women are now allowed to become freeminers. Present day The Dean Forest Mines Act is the basis for Free Mining today and Freemining is administered by the Deputy Gaveller; a post established in Medieval times, recently held by Chartered mining engineer John Harvey MBE (retired March 2011), and succeeded by Daniel Howell. There are probably still around 150 Freeminers alive today, although only a handful of collieries are still operating, due to the demanding nature and relatively high costs of small-scale extraction; the closure of maternity hospital facilities at the Dilke Hospital - so that it has become unusual to be born within the "Hundred of St Briavels" - and attempts by the UK government to exact commercial coal mining licence charges under the 1994 Coal Act adds further difficulties. Despite the modest level of activity, some Freemines do operate successfully, especially through diversification into non-traditional areas such as tourism and ochre