Bus. & Prof. Code, § 6009

(a) Notwithstanding any other provision of law, a city, county, or city and county may require attorneys who qualify as lobbyists, as defined by the local jurisdiction, to register and disclose their lobbying activities directed toward the local agencies of those jurisdictions, in the same manner and to the same extent such registration and disclosure is required of nonattorney lobbyists. Any prohibitions against specified activities by lobbyists enacted by a city, county, or city and county shall also apply to attorneys who qualify as lobbyists.

(b) For purposes of this section, information about a lobbyist that may be required to be disclosed is:

(1) The name, business address, and telephone number of the lobbyist, of any lobbying firm of which the lobbyist is a partner, owner, officer, or employee; and of any persons or lobbying firms paid to lobby by the lobbyist.

(2) The name, business address, and business telephone number of each client who pays the lobbyist to lobby; the specific matter and agency lobbied, itemized by client; and the amount of money paid to the lobbyist for lobbying and the total expenses of the lobbyist for lobbying, itemized by client.

(3) All gifts or payments made by the lobbyist to officials in the jurisdiction, itemized by the name of the official, the amount, date, and description of the gift or payment, and the names of the person making the gift or payment and the person receiving the gift or payment.

(4) All campaign contributions made, arranged, or delivered by the lobbyist to officials in the jurisdiction, specified by amount, date, and name of the official receiving the contribution.