The Palme cabinet was also active in the field of education, introducing such reforms as a system of loans and benefits for students, regional universities, and preschool for all children.  Under a law of 1970, in the upper secondary school system “gymnasium,” “fackskola” and vocational “yrkesskola” were integrated to form one school with 3 sectors (arts and social science, technical and natural sciences, economic and commercial). In 1975, a law was passed that established free admission to universities.  A number of reforms were also carried out to enhance workers' rights. An employment protection Act of 1974 introduced rules regarding consultation with unions, notice periods, and grounds for dismissal, together with priority rules for dismissals and re-employment in case of redundancies.  That same year, work-environment improvement grants were introduced and made available to modernising firms “conditional upon the presence of union-appointed ‘safety stewards’ to review the introduction of new technology with regard to the health and safety of workers.”  In 1976, an Act on co-determination at work was introduced that allowed unions to be consulted at various levels within companies before major changes were enforced that would affect employees, while management had to negotiate with labour for joint rights in all matters concerning organisation of work, hiring and firing, and key decisions affecting the workplace.