Cite this instrumentInternal Revenue Service, IRS FAQs (April 29, 2020 version), reliance disclaimer carried on every FAQ page, Not published in the I.R.B.; IRS.gov FAQ pages 'Page Last Reviewed or Updated: 29-Apr-2020' (Wayback captures; LAW-146 capture 20200518213826; LAW-107 index capture 20200506041613) (Apr. 29, 2020) (Ex. LAW-146)
The form the site uses everywhere: issuer, instrument, date, exhibit.