(a)
In general— Subject to section 5, on the date on which an agency issues a guidance document, the agency shall publish the guidance document in accordance with the requirements under section 4.
(b)
Previously issued guidance documents— Subject to section 5, not later than 180 days after the date of enactment of this Act, each agency shall publish, in accordance with the requirements under section 4, any guidance document issued by that agency that is in effect on that date.