Scheme was introduced in 1947 to put an end to the casual system of hiring labour in the docks. This scheme gave registered dockers the legal right to minimum work and decent conditions. Through the National Dock Labour Board (on which trade unions and employers had equal representation) the unions acquired control over recruitment and dismissal. Registered dockers laid off by employers within the Scheme had the right either to be taken on by another, or to generous compensation. All dockers were registered under the Dock Labour Scheme, giving them a legal right to minimum work, holidays and sick pay. Wages for members of the police force were significantly increased. The introduction of a Miner's Charter in 1946 instituted a five-day work week for miners and a standardised day wage structure, and in 1948 a Colliery Workers Supplementary Scheme was approved, providing supplementary allowances to disabled coal-workers and their dependants. In 1948, a pension scheme was set up to provide pension benefits for employees of the new NHS, as well as their dependents. Under the Coal Industry Nationalisation (Superannuation) Regulations of 1950, a pension scheme for mineworkers was established. Improvements were also made in farmworkers' wages, and the Agricultural Wages Board in 1948 not only safeguarded wage levels, but also ensured that workers were provided with accommodation. A number of regulations aimed at safeguarding the health and safety of people at work were also introduced during Attlee's time in office. Regulations were issued in February 1946 applying to factories involved with "manufacturing briquettes or blocks of fuel consisting of coal, coal dust, coke or slurry with pitch as a binding .substance," and which concerned "dust and ventilation, washing facilities and clothing accommodation, medical supervision and examination, skin and eye protection and messrooms." The Coal Mines (Ventilation) General Regulations dated 17 May 1947 “implement recommendations of the Royal Commission on Safety in Coal Mines regarding two main topics: methods of checking periodically the general standard of ventilation and methods of minimising leakage of air. Provisions are laid down respecting determinations of firedamp content and methods by which these determinations are to be made.” The Radioactive Substances Act, dated 30 June 1948, “ which regulates the importation, manufacture, sale, storage and use of radioactive substances, includes provisions empowering the appropriate Minister to issue regulations for the prevention of injuries to health caused by ionising radiations and for securing the safe disposal of