A/HRC/25/22 (c) Follow as closely as possible the periodicity provided for in the treaties so as not to prejudice the legal reporting obligations of States parties; (d) Non-reporting should be an exception and not the norm, and the calendar should not be permissive as regards non-reporting; (e) Assembly. Eliminate backlogs and ad hoc requests for meeting time to the General 49. The chairpersons expressed their commitment to continue to align the working methods of the treaty bodies and decided to discuss the possibility of a common format for concluding observations and the possible alignment of the methodology for the interactive dialogue at their twenty-sixth meeting to be held in June 2014. They reiterated the recommendation made at their twenty-fourth meeting to adopt measures on working methods and procedural matters that were common across the treaty body system and that had previously been discussed within each committee. They agreed that such measures should be implemented by all the treaty bodies, unless a committee subsequently dissociated itself therefrom. They also reaffirmed their role in facilitating representation and coordination of common activities, such as consideration and adoption of joint statements, while respecting the autonomy and specificity of each treaty body. 50. The chairpersons affirmed their commitment to promote positive consideration of the recommendations contained in the report of the High Commissioner on strengthening the treaty body system, stressing that implementation should be collaborative and recommending that each treaty body annually update the meeting of chairpersons on progress made. They further recommended that the secretariat produce and regularly update an implementation report to enable the meeting of chairpersons to better review progress, bearing in mind that treaty body strengthening is an ongoing process. To that effect, the chairpersons decided to include treaty body strengthening and consideration of the recommendations contained in the report of the High Commissioner on the agenda of the next meeting. 51. The chairpersons also expressed deep concern over late and non-reporting by a number of States parties, and recommended that the secretariat post regular updates on late and non-reporting by States parties on the OHCHR website. They decided to include this topic as a standing item on the agenda of the meeting of chairpersons. 52. Finally, the chairpersons decided that their next meeting would focus on treaty body strengthening; late and non-reporting of States parties; and harmonization of working methods. IV. Other developments relevant to Human Rights Council resolution 9/8 53. In 2013, a total of 43 new ratifications and accessions (compared to 70 in 2012) were deposited with the Secretary-General, bringing the total to 2,192 ratifications of and accessions to international human rights treaties and protocols, as well as acceptance of treaty provisions relating to individual communication procedures. 54. Also, 75 weeks of treaty body sessions were held in 2013, during which 135 States parties were reviewed. Treaty bodies with a State party reporting procedure received a total of 96 State party reports, including 12 common core documents. The Committee on Economic, Social and Cultural Rights made headway with the reporting backlog with an additional week of meeting time. However, as at 1 December 2013, over 300 State party reports were pending consideration. Engagement of civil society and other stakeholders is well established and the treaty bodies receive more than 1,000 written submissions from 11