Each pest control dealer required to be licensed pursuant to Section 12101 shall have and maintain, at the principal office, and at each branch location, a designated agent qualified to actively supervise all operations conducted at that location. The designated agent shall be a person who holds a pest control dealer designated agent license, an agricultural pest control adviser license, a pest control aircraft pilot certificate, or a qualified applicator license issued pursuant to Chapter 8 (commencing with Section 12201).