Voters will have a chance in November to increase the restrictions on political contributions in the latest campaign finance proposal aimed at pay-to-play.

The Sunlight on Dark Money ballot initiative requires greater disclosure of who is behind campaign advertisements paid for by PACs.

The measure requires the top three largest donors of the committee paying for the advertisement to disclose the name and amount contributed to the committee.

If any of the three belong to another committee, they must disclose the top two donors of that committee as well.

The measure would also prohibit top executives in development companies from contributing to candidates or current office holders of the Board of Supervisors, mayor, and city attorney.

The prohibition will be in effect while a project they have financial interest in is pending approval, or for 12 months after the city makes a final decision on the project.

The measure will also close a loophole allowing LLCs and LLPs to contribute to candidates despite an existing ban on those donations from corporations.

The measure would take effect 10 days after the election results are certified.