CA AB2155

Excludes additional communications from advertisement disclosure requirements, including email messages requested by recipients, solicited communications, and communications where disclosures would severely interfere with the message (to be determined by Fair Political Practices Commission regulations).

Requires advertisements to use "Ad paid for by" instead of "Paid for by," except for printed letters, websites, and email messages which may continue using "Paid for by."

Modifies "top contributors" disclosure rules by resolving ties based on most recent contribution date and excluding nonprofit 501(c)(3) organizations and contributors who prohibit use of their funds for candidate support or opposition.

Prevents the Fair Political Practices Commission from establishing quantity or amount thresholds beyond those explicitly specified in campaign finance provisions.

Updates disclosure formatting requirements for video, print, and electronic media advertisements, including stricter specifications for font size, placement, contrast, and duration of disclosures.