(d)
The certificate holder may not operate any aircraft in Part 135 operations, which is subject to an agreement between the certificate holder and the aircraft owner or any lessee of the aircraft, if that agreement shifts liability and accountability for the safety of the certificate holder’s Part 135 flight operations from the certificate holder to the aircraft owner or other parties.

(6) Management Personnel and Persons Authorized to Exercise Operational Control:

(a)
Prior to conducting a Part 135 flight or series of flights, at least one management person or a management person designee (who is a direct employee of the certificate holder) listed in operations specification A006 (Management Personnel) of these operations specifications, other than a pilot assigned to the specific flight or series of flight, must determine and have sufficient knowledge of the following:

(i)
Whether each assigned crewmember is qualified and eligible to serve as a required crewmember in the aircraft and type of operation to which the crewmember is assigned (see subparagraph d. (1)(b) above) and

U.S. Department of Transportation
Federal Aviation Operations Specifications Administration
(ii)
Whether the aircraft assigned for use is listed in operations specification D085, and is airworthy under the certificate holder's FAA-approved maintenance, inspection, or airworthiness program, as appropriate.

(b)
Prior to conducting a Part 135 flight or series of flights, at least the pilot assigned in accordance with subparagraph d.(6)(a)(i) above must determine and have sufficient knowledge of the following:

(i)
Whether a Part 135 flight or series of flights can be initiated, conducted, or terminated safely and in accordance with the authorizations, limitations, and procedures approved in the certificate holder’s operations specifications, general operations manual, or subparagraph a. above and the appropriate regulations.