Cal. Bus. & Prof. Code § 7068.1
(a) The person qualifying on behalf of an individual or firm under paragraph (1), (2), (3), or (4) of subdivision (b) of Section 7068 shall be responsible for exercising supervision and control of their employer’s or principal’s construction operations to secure compliance with this chapter and the rules and regulations of the board. This person shall not act in the capacity of the qualifying person for an additional individual or firm unless one of the following conditions exists:
(c) The following definitions shall apply for purposes of this section:
(4) “Direct supervision or control” means any of the following: