Via Axios' Andrew Solender:

At least one GOP office apparently has the much-fabled 3-page House rules addendum.

"We're taking a look at it … we're just going through it," Rep. Ken Calvert, a Steering Committee member, tells @Axios

Asked if members have received a copy: "I don't know if everybody has."

— Andrew Solender (@AndrewSolender) January 9, 2023

According to Punchbowl News,

there's also a secret three-page addendum that McCarthy and his allies hashed out during several days of grueling negotiations with the House Freedom Caucus. This pact includes the most controversial concessions McCarthy made in order to become speaker – three seats on the Rules Committee for conservatives, freezing spending at FY2022 levels, a debt-ceiling strategy, coveted committee assignments and more.