Amends the Election Code. Provides for procedures to fill vacancies occurring in elected county offices and in the offices of elected members of the county board in counties under the county executive form of government. Amends the County Executive Form of Government Division of the Counties Code. Modifies the definition of "county board" and adds the definition of "county board speaker". Provides that the county executive shall control the internal operations of the county executive's office and procure the necessary equipment, materials, and services to perform the duties of that office. Removes a requirement for the advice and consent of the board for county executive hirings (rather than appointments) related to subordinate deputies, employees, and appointees for the general administration of county affairs. Provides that the county executive shall remove or suspend in the discretion of the county executive anyone whom the county executive has the power to hire (rather than appoint), other than officials in an elected office that were appointed to fill a vacancy (currently, shall remove or suspend in the county executive's discretion, after due notice and hearing, anyone whom the county executive has the power to appoint). Provides that, in a county that has adopted the county executive form of government, the county board chairman, chairperson, or chair shall only have those powers and duties set forth in the Division and that any powers and duties vested in a county board chairman, chairperson, or chair in any Illinois statute, other than the Division and specified provisions of the Public Health District Act and Election Code, shall instead be vested in the county executive in those counties that have adopted the county executive form of government. Adds provisions relating to meetings of the county board, speaker of the county board, quorum, omnibus votes, and administering oaths. Replaces male pronouns with gender-neutral terms. Makes other changes. Effective immediately.