44. The secretariat reminded the World Forum that during its last session in March, WP.29 had requested the secretariat to update the document on the revised guidelines on amendments to UN Regulations following discussions in the Subgroup on Revision 3 of the 1958 Agreement. The secretariat noted that it was currently discussing a possible simplification of symbols for documents with the Document Managements Services of UNOG with the goals of (i) replacing double-symbols by single symbols as of entry into force of Revision 3, (ii) indicating versions by an index-number attached to the original symbol, and (iii) introducing a modular concept for UN Regulation No. 0 which would show the applicable vehicle category already in the symbol. The WP.29 secretariat added that texts of Revisions include all previous amendments and corrections of a series of amendments approved by AC.1. The WP.29 secretariat informed WP.29 that previous versions would be made available electronically on the UNECE website at the request of Contracting Parties. The WP.29 Secretary also informed WP.29 that he had requested clarification by OLA on the legal status of documents and OLA had clarified that only the authentic texts that have been voted on by AC.1 were legally binding texts. Therefore from the date of entry into force of documents on 15 June 2015, the documents would bear a disclaimer with the symbols of the authentic texts on their front page. He reminded the World Forum to use static references to standards instead of dynamic ones in regulations.