(1) When it is used to determine whether one person controls another or whether two persons are under common control, means any one or a combination of the following:
(i) A third person or firm has equity ownership of 51 percent or more in each of two firms; or
(ii) Two or more firms have common corporate officers, in whole or in substantial part, who are responsible for the day-to-day operation of the companies; or
(iii) One person or firm leases, operates, or supervises 51 percent or more of the equipment and/or facilities of another person or firm; owns 51 percent or more of the equipment and/or facilities of another person or firm; or has equity ownership of 51 percent or more of another person or firm.
(2) When it is used to refer to the management of vehicles, means a person has the authority to decide who can operate a particular vehicle, and the purposes for which the vehicle can be operated.
10 CFR § 490.2
The following definitions apply to this part -