The bill H. 4563 proposes an amendment to Rule 4.2 of the Rules of the House of Representatives concerning the composition of standing committees. The amendment stipulates that standing committees must be composed of members from the majority political party in proportion to the number of representatives from each political party, ensuring that the majority party holds a majority of the committee's membership. This change aims to create a more balanced representation within the committees based on party affiliation.

The specific legal language being amended includes the first paragraph of Rule 4.2, which will now reflect the requirement for proportional representation of the majority and minority parties in standing committees. Additionally, the bill outlines the process for rounding percentages when determining committee composition and grants the Speaker the authority to make adjustments to committee membership during organizational sessions.