11 C.F.R. § 100.74 Uncompensated services by volunteers.
Title 11 - Federal Elections
The value of services provided without compensation by any individual who volunteers on behalf of a candidate or political committee is not a contribution.
Title 11: Federal Elections
PART 100—SCOPE AND DEFINITIONS (2 U.S.C. 431)
Subpart C—Exceptions to Contributions
§ 100.74 Uncompensated services by volunteers.