There is a great need in many countries for extended and new teacher competence to meet the challenges of inclusive education. This paper presents a national programme for developing new teacher competence in secondary schools in Norway. The programme was developed and implemented during the 1990s, its aim being to start a continuing process in schools directed at promoting inclusive education and improving the quality of education for pupils with special educational needs. Further, the paper presents some findings from a national survey of 2240 teachers and school administrators in 104 schools one year after the implementation of the programme. The survey partially replicated a survey carried out before the programme started. The purpose was to give an overall picture of the situation with respect to teacher competence in special needs and inclusive education, and the impact of the competence building programme on teacher practice, and to identify possible system changes in schools.