Why does this link go to a club web site and not to an Official SASS web site?
Rule Clarification Archives
As a fairly new SASS member I would only go to the SASSNET web site for any Official SASS rule information.
As I understand it the Shooters Handbook (current edition, Version 23.2 January 2019) is the set of rules for SASS.
I would expect if there are changes or clarifications required to the current edition that SASS maintains them as an addendum to the rule book, on the rules web page and all SASS members are notified when there is a update to said addendum.
If it is not in the published rules then it can not be a rule (or clarification).