Assembly Bill 249, also known as the “California Disclose Act,” will be heard in the Senate on August 29. The bill requires most campaign ads to display their top three funders, even if those contributions were funneled through other committees.

Similar versions of AB 249 have been introduced without passage since 2012. A similar bill from 2016 failed by one vote in the Senate. Last year’s bill was opposed by the California Fair Political Practice Commission (FPPC) due to the bill’s language making enforcement difficult.

The current version of the bill underwent changes to make the proposed law more acceptable to opponents and the FPPC has remained neutral.