A/HRC/4/81 page 5 16. At its thirty-sixth and thirty-seventh sessions, held in May and November 2006, respectively, the Committee on Economic, Social and Cultural Rights (CESCR) began a first reading of two draft general comments on non-discrimination (art. 2.2) and on the right to social security (art. 9). As part of the preparation of the draft general comment on the right to social security, the Committee held, during its thirty-sixth session, a day of general discussion on the topic. At its thirty-seventh session, the Committee decided that it would address, at a future date, article 15 (1) (a) of the Covenant which addresses the right to take part in cultural life. 17. CEDAW continued its work on general recommendations on the rights of migrant women and the implementation of article 2 of the Convention. CAT held a preliminary discussion of its draft general comment on implementation of article 2 of the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment. 18. HRC continued its work on a revised general comment on the right to equality before courts and tribunals and to fair trial (art. 14 of the Covenant). It decided that it would address, at a future date, the obligations of States parties under the Optional Protocol to the Covenant. Streamlining reporting procedures 19. Pursuant to recommendations of the fourth ICM and the seventeenth meeting of chairpersons (A/60/278), an Inter-Committee Technical Working Group, consisting of representatives of each treaty body, met from 8 to 9 December 2005 and 15 to 17 February 2006. The working group finalized the draft harmonized guidelines on reporting under international human rights treaties, including guidelines on the common core document and treaty specific documents, which were subsequently accepted by the meeting of chairpersons in June 2006 (HRI/MC/2006/3 and Corr.1). 20. The meeting of chairpersons recommended that the committees immediately apply the draft harmonized guidelines in a flexible manner, review their existing reporting guidelines, and compile indications of any difficulties experienced. The meeting recommended that the experiences of each committee be reviewed at the seventh ICM in 2008 and that consideration be given to the establishment of an inter-committee mechanism to keep the guidelines under review. Several States parties had begun to report under the guidelines, including Afghanistan, Angola and Timor-Leste. It was agreed that various aspects of the harmonized guidelines required further consideration and revision in accordance with the specific requirements of each treaty body, and that refinement of the guidelines would result from their practical implementation. 21. At its sixty-ninth session, CERD requested the Secretariat to prepare draft revised reporting guidelines for consideration at its seventieth session, to be held from 19 February to 9 March 2007, so as to take into account the revised harmonized guidelines on reporting, as accepted by the eighteenth meeting of chairpersons. CEDAW established an intersessional working group composed of three members, to consider possible revisions to the Committee’s reporting guidelines in light of the acceptance of the revised harmonized guidelines, for consideration at its thirty-seventh session in January 2007. In the light of the revised reporting guidelines, CESCR decided at its thirty-sixth session to review its reporting guidelines and