Section 1 reads: ***** All text is normative unless otherwise labeled. ***** However, that is contradicted by 1.6, which reads in part: ***** All items in the tables not marked as “optional” are mandatory. Information in the “Specification” column of the tables is normative. Information appearing in the “Note” column is explanatory and non-normative. All sections explicitly noted as examples are informational and are not to be considered normative. ***** So information in the Note column, if not labeled as non-normative is normative, except that if it is in the Note column then it is explanatory. Yes? This type of conflict/confusion is unnecessary.