CRC/C/MMR/CO/3-4 age of 16 years) and a youth (between 16 and 18 years); the absence of a minimum age for marriage for boys; and the legality of the marriage of girls as young as 14 years with parental consent. 34. The Committee reiterates its previous recommendation (CRC/C/15/Add.237, para. 26) that the State party review its legislation to define the child as any person below 18 years of age and establish the minimum legal age for marriage for boys and girls at 18 years. C. General principles (arts. 2, 3, 6 and 12 of the Convention) Non-discrimination 35. The Committee reiterates its concern (CRC/C/15/Add.237 para. 27) about the multiple forms of discrimination that persist in the State party, particularly those against girls and children in vulnerable and disadvantaged situations, such as children from ethnic and religious minority groups (including Rohingya children), children from remote and border areas, internally displaced children, children in street situations, children affected by HIV/AIDS, children with disabilities, orphans and children in situation of poverty. 36. The Committee urges the State party to: (a) Undertake the necessary legislative changes to ensure nondiscrimination on the basis of sex, ethnicity or religion and explicitly incorporate the principle of non-discrimination on any grounds in all newly developed legislation and policies; (b) Adopt and implement measures to prevent and eliminate discrimination against individual children and specific groups of disadvantaged children; (c) Carry out public awareness-raising campaigns on the detrimental impacts of discrimination; and (d) Include information in its next periodic report on measures and programmes relevant to the Convention on the Rights of the Child undertaken by the State party in the follow-up to 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. Best interests of the child 37. While noting that the principle of the best interests of the child is mentioned in article 27 of the Child Law, the Committee is concerned that the knowledge of this principle remains insufficient and no action has been taken by the State party to include it in any other legislation or budgets, or to ensure that it is sufficiently applied in the judicial and administrative decisions. 38. The Committee urges the State party to strengthen its efforts to ensure that the principle of the best interests of the child is appropriately integrated and consistently applied in all legislative, administrative and judicial proceedings and all policies, programmes and projects relevant to and with an impact on children. The legal reasoning of all judicial and administrative judgments and decisions should also be based on this principle. 7