acotra.substack.com/p/giving-from-the-heart

The claim says the provision would "stop states from passing any new welfare laws", but the bill text is narrower than that.

The text of H.R. 4673 (the "Save Our Bacon Act") says states may not impose certain production standards on "covered livestock" raised in other states, or impose, as a condition for sale or consumption, production standards on products derived from covered livestock raised elsewhere that differ from the producing state's standards. It does not say that states are forbidden from passing any new animal-welfare laws.

Two details in the bill text directly contradict the article's blanket wording:

1. The bill is limited to "covered livestock" and to standards on their production or on the sale/consumption of products from such livestock.
2. The bill's definition of "covered livestock" explicitly excludes animals raised primarily for egg production.

A Harvard Animal Law & Policy Program analysis reproduces and analyzes this text, noting that the bill applies to products derived from "covered livestock" and quoting the definition that excludes egg-production animals. That means the proposal is about a specific subset of agricultural regulation, not a total ban on new state animal-welfare laws.

So a more accurate description would be that the proposal would preempt some state standards affecting the production or sale of products from certain livestock raised out of state — not that it would stop states from passing any new welfare laws.