California Code, Government Code - GOV § 82036

(a) A contribution, including a loan, that totals in the aggregate one thousand dollars ($1,000) or more and is made to or received by a candidate, a controlled committee, or a committee formed or existing primarily to support or oppose a candidate or measure during the 90-day period preceding the date of the election, or on the date of the election, at which the candidate or measure is to be voted on.  For purposes of the Board of Administration of the Public Employees' Retirement System and the Teachers' Retirement Board, “the date of the election” is the deadline to return ballots.

(b) A contribution, including a loan, that totals in the aggregate one thousand dollars ($1,000) or more and is made to or received by a political party committee, as defined in Section 85205, within 90 days before the date of a state election or on the date of the election.