CAT/OP/3/Rev.2 2. In accordance with article 31 of the Optional Protocol, the Subcommittee may consult with bodies established under regional conventions with a view to cooperating with them and avoiding duplication in effectively promoting the objectives of the Optional Protocol. 3. The Subcommittee shall cooperate, for the prevention of torture in general, with the relevant United Nations organs and mechanisms, as well as with the international, regional and national institutions or organizations working towards the strengthening of the protection of all persons against torture and other cruel, inhuman or degrading treatment or punishment. XV. Interpretation Rule 45 Interpretation of the rules of procedure For the purpose of interpreting the present rules, the headings, which have been inserted for reference purposes only, shall be disregarded. XVI. Amendment of the present and complementary rules Rule 46 Suspension Any of the present rules may be suspended by decision of the Subcommittee, provided the suspension is not inconsistent with the provisions of the Optional Protocol. Rule 47 Amendments The present rules may be amended by decision of the Subcommittee, at least 24 hours after the proposal for such an amendment has been circulated, provided that the amendment is not inconsistent with the provisions of the Optional Protocol. Rule 48 Complementary documents 1. The present public rules are complemented by separate public or confidential documents. 2. A document compiling all of the Subcommittee’s working methods shall be adopted by the Subcommittee and updated by the Secretary-General to take account of decisions regarding working methods taken by the Subcommittee during its sessions. 14