It's not necessarily based on testimony, as you say. It is rather the way the clause was written. In the bill, it says: “Within 30 days after the end of the quarter in which a contract... is amended...”. We want make it clearer by adding “or within 60 days after the end of that quarter if that quarter is the fourth quarter”. You see the nuance. Right now, it only says: “Within 30 days.” By adding the fourth quarter, we are extending the deadline.
On November 8th, 2017. See this statement in context.