E/C.12/KHM/CO/1 page 13 40. The Committee urges the State party to extend the coverage of the social safety nets by developing targeted measures to address the situation of disadvantaged and marginalized individuals and groups, in particular the homeless in urban centres, victims of trafficking, children living on the streets or in conflict with the law, and poor people and households. The Committee further urges the State party to consider establishing a universal social assistance programme to guarantee the enjoyment of the right to social security for everyone in the State party. (arts. 9, 10 and 11) 41. The Committee requests the State party to provide in its next periodic report detailed information regarding the situation of street children in urban and rural communities and the measures, if any, to provide protection and assistance to them. (art. 10) 42. The Committee requests the State party to provide in its next periodic report detailed information on the extent of homelessness throughout the country and the intervention measures and programmes in place as well as their outcomes. (art. 11) 43. The Committee recommends that the State party ensure adequate budget allocation for all levels of education especially basic education, and the transparency of the allocation and disbursement system for the implementation of the right to education. The Committee also recommends that the State party expand non-formal education programmes, particularly for outof-school girls. (art. 13) 44. The Committee encourages the State party to consider signing and ratifying the Optional Protocol to the International Covenant on Economic, Social and Cultural Rights. 45. The Committee also encourages the State party to consider ratifying ILO Conventions No. 81 (1947) concerning Labor Inspection in Industry and Commerce, and No. 102 (1952) concerning Minimum Standards of Social Security. 46. The Committee requests the State party to disseminate the present concluding observations widely among all sectors of society and to inform the Committee on all steps taken to implement them in its next periodic report. 47. The Committee recommends to the State party to seek the assistance of the OHCHR Cambodia Country Office regarding the implementation of these concluding observations, as well as in the preparation of its next periodic report. It also encourages the State party to continue engaging non-governmental organizations and other members of civil society in the process of discussion at the national level prior to the submission of its next periodic report. 48. The Committee invites the State party to submit a common core document in accordance with the 2006 harmonized guidelines on reporting to the international human rights treaty monitoring bodies (HRI/GEN/2/Rev.5). 49. The Committee requests the State party to submit its combined second to fifth periodic report, in line with the Committee's treaty-specific guidelines for reporting (E/C.12/2008/2) by 30 June 2012. -----