No wonder people find it necessary to bring guards to hospitals these days ~
The rules already say no formula for breastfed infants without medical indication. This is not a new rule. All the "no formula for breastfed infants" provision of this program means is that participating hospitals agree to abide by the already-existing rule.
And, again, this is intended to be a counterbalance to the policy/culture/practice in some hospitals to give formula nearly always (even, as happened with my daughter, when the parents specifically instruct otherwise).