37 CFR § 11.503 - Responsibilities regarding non-practitioner assistance.
With respect to a non-practitioner assistant employed or retained by or associated with a practitioner:
(a) A practitioner who is a partner, and a practitioner who individually or together with other practitioners possesses comparable managerial authority in a law firm shall make reasonable efforts to ensure that the firm has in effect measures giving reasonable assurance that the person's conduct is compatible with the professional obligations of the practitioner;
(b) A practitioner having direct supervisory authority over the non-practitioner assistant shall make reasonable efforts to ensure that the person's conduct is compatible with the professional obligations of the practitioner; and
(2) The practitioner is a partner or has comparable managerial authority in the law firm in which the person is employed, or has direct supervisory authority over the person, and knows of the conduct at a time when its consequences can be avoided or mitigated but fails to take reasonable remedial action.