The UN Convention on the Rights of the Child and ILO Conventions No. 182 (ILO, 1999) on the worst forms of child labour (including hazardous work), and No. 138 (ILO, 1973) on the minimum age for admission to employment and work, establish guidelines for defining child labour. Age-appropriate tasks for boys and girls can be a normal part of growing up if they do not expose children to conditions that are likely to cause them harm, do not have negative health or development consequences, and do not interfere with a child's compulsory schooling and leisure time.