Comment: Under the new Conformance level definitions, I strongly suggest that 2.4.3 should be a Level 1 SC & that 2.4.5 should be a Level 2 SC
adjust the levels of 2.4.3 & 2.4.5
We have added "descriptive" to SC 2.4.2 (formerly SC 2.4.3) and moved it to level A.
SC 2.4.6 (formerly 2.4.5) has been moved to Level AA. It addresses descriptive headings and labels, which may need to be understood in context. While headings may not have sufficient descriptive power in isolation, when viewed in the context of a structured document, they do have sufficient descriptive power.