Last Thursday, Maryland Governor Martin O’Malley signed a new campaign finance law. Among other provisions, the law requires disclosure of contributors to independent expenditure and electioneering groups. The new law, which generally goes into effect in 2015, will require disclosure of the identity of any person contributing $6,000 or more to independent expenditures or independent electioneering groups that are involved in Maryland state elections. The new law also restricts contributions by limited liability companies and other non-corporate business entities, and it raises contribution limits from $4,000 to a single candidate in a cycle to $6,000 and from $10,000 to all candidates in a cycle to $24,000.