It also established the teacher performance evaluation system (also referred to as Docentemas) within the municipal school sector in 2003 following a tripartite agreement between the Ministry of Education, the Chilean Association of Municipalities and the Teachers’ Association (Colegio de Profesores). This system is complemented by a range of reward programmes which involve some type of evaluation: the Programme for the Variable Individual Performance Allowance (municipal sector only) (A VDI), the Programme for the Accreditation of Pedagogical Excellence Allowance (covering the entire subsidised school sector) (AEP), and the National System for Performance Evaluation (SNED), which provides group rewards for teaching bodies of given publicly subsidised schools. In addition to these formal programmes, private schools (both subsidised and non-subsidised) autonomously organise their own performance teacher evaluation systems and any school is free to organise extra internal systems of teacher evaluation.