Glossary Definition:

Source Prohibitions: Source prohibitions completely ban expenditures or contributions by particular types of entities, most notably business corporations, unions, and foreign nationals.

Statutes and Regulations:

Disclosure of Federal Campaign Funds, 2 U.S.C. § 441

Coordinated Independent Expenditures, 11 C.F.R. § 109

Corporate and Labor Organization Activity, 11 C.F.R. § 114

Other General Reference Materials:

FEC Adv. Op. 2003-37 (Americans for a Better Country).