45 CFR §2509.16

1. (a)Ensure all effective guidance documents, identified by a unique identifier which includes, at a minimum, the document's title and date of issuance or revision and its RIN, if applicable, are on its website in a single, searchable, indexed database, and available to the public in accordance with § 2905.16;
2. (b)Note on its website that guidance documents lack the force and effect of law, except as authorized by law or as incorporated into a contract; and
3. (c)Publish on its website where the public can comment electronically on any guidance documents that are subject to the notice-and-comment procedures described in § 2509.22 and to submit requests electronically for issuance, reconsideration, modification, or rescission of guidance documents.
4. (d)Guidance documents that do not appear on the Agency's single, searchable, indexed database are rescinded.