The children enrollment and graduate assignment system also were changed to reflect more closely the personnel needs of modernization. By 1986 the state was responsible for drafting the enrollment plan, which took into account future personnel demands, the need to recruit students from outlying regions, and the needs of trades and professions with adverse working conditions. Moreover, a certain number of graduates to be trained for the People's Liberation Army were included in the state enrollment plan. In most cases, enrollment in higher education institutions at the employers' request was extended as a supplement to the state student enrollment plan. Employers were to pay a percentage of training fees, and students were to fulfill contractual obligations to the employers after graduation. The small number of students who attended colleges and universities at their own expense could be enrolled in addition to those in the state plan.