11 C.F.R. § 400.50 Definition of excess contributions.
Title 11 - Federal Elections
For purposes of this subpart, excess contributions mean contributions that are made under the increased limit, as defined in 11 CFR 400.6 in subpart B of this part, but not expended in connection with the election to which they relate.
Title 11: Federal Elections
PART 400—INCREASED LIMITS FOR CANDIDATES OPPOSING SELF-FINANCED CANDIDATES
Subpart E—Disposal of Excess Contributions
§ 400.50 Definition of excess contributions.