Proposal to amend UN Regulation No. 121 by inserting new paragraph 5.2.1.1 stating that fonts shown in Table 1 are not intended to be restrictive and other fonts may be substituted if legibility is maintained. Table 1, Note No. 20 is amended to clarify that the font of letters “OFF” or “ESC OFF” is not intended to be restrictive. The purpose is to clarify the text, provide flexibility, harmonize with international standards, and adapt to current digital work tools.