If you want my interpretation on what the rule would then cover off—and I hope this is Mr. Barsalou-Duval's understanding as well—if we remove the text, as Mr. Bachrach suggested, "or any motion in amendment of a substantive motion", this would still cover situations in which the committee was in a portion of committee business and a member brought forward a motion that perhaps had not had the 48 hours' notice and had not been distributed beforehand. Any such motion that comes off the floor in that manner would have to be made in both official languages.
On February 25th, 2021. See this statement in context.