CRC/C/BOL/CO/4 page 7 field of child rights, and especially in the reporting process, including follow-up, to the Committee. 2. Definition of the child (art. 1 of the Convention) 26. The Committee reiterates its concern at the low legal minimum age for contracting marriage, as well as the discrepancy between the minimum age for girls (14 years) and for boys (16 years). 27. The Committee reiterates its recommendation that the State party set the minimum age for marriage for girls and for boys at a higher and equal level. It further recommends that the State party adopt a comprehensive legal reform to uniform the definition of the child and their rights in the civil, family and criminal code. 3. General principles (arts. 2, 3, 6 and 12 of the Convention) Non-discrimination 28. The Committee welcomes the broad definition of discrimination in the new Constitution, the creation of the National Office for the Prevention of Any Form of Violence due to Gender or Generational Differences and the National Plan for Equal Opportunities for Women (2008). It is however concerned about the non-existence of coherent institutional and legal mechanisms to respond to the challenges of discrimination, and about the reported increase in acts of racism against indigenous peoples and afro-descendants, often leading to violence, and about how this affects children. The Committee is further concerned about the significant disparities in the State party in the implementation of the rights enshrined in the Convention, reflected in a range of social indicators such as enrolment in and completion of education, infant mortality rates and access to health care, indicating persistent discrimination against indigenous and afro-descendant children, girls, children with disabilities, children living in rural and remote areas and children from economically disadvantaged families. 29. In light of article 2 of the Convention, the Committee recommends that the State party intensify its efforts to implement the National Plan for Equal Opportunities for Women, strengthening the National Office for the Prevention of Any Form of Violence due to Gender or Generational Differences, and develop awareness-raising campaigns to prevent and eliminate all forms of de facto discrimination against indigenous and afrodescendant children, children with disabilities, girls, children living in rural and remote areas and children from economically disadvantaged families. The Committee would also like to draw the State party’s attention to the principles of the Declaration and Programme of Action adopted at the 2001 World Conference against Racism, Racial Discrimination, Xenophobia and Related Intolerance, as well as the outcome document adopted at the 2009 Durban Review Conference.