In Section 5.2 (prose)
As with [Streams], CTS Stream Intervals are ordered, that is the sequence of intervals is essential. Some serialization specifications, notably XML, do not require that order be preserved when deserializing a list. The UID enables proper ordering of the Stream Intervals if order is not preserved. Since conformant CTS implementations need not be owned by the same implementer, and may pass through multiple translations, the UID property is required.

In Table 5-1 changed the Note on Stream Intervals to
Ordering is addressed differently in different serializations. XSD is a specific example where the order of a list is implementation defined, so the Stream Interval UID is mandatory under XML serialization.

In Table 5-2 changed the Note on UID to
As conformant CTS implementations need not be owned by the same implementer, intermarket gateways (however defined) may deserialize and re-serialize to different specifications, in which case the gateway MUST have knowledge as to when the UID is mandatory.

Agreed

Simplify CtsStreams by requiring the local UID (typically an integer) (technically, changing the cardinality to 1..1 in the UML model. Figure 5-1 needs to be updated along with text of Section 5.

Transition all APPLIED to CLOSED per Energy Interoperation TC Motion April 28, 2022.