; (B) delegate fully to the ODA holder each of the functions specified in the procedures manual, unless the Administrator determines, after the date of the delegation and as a result of an accident finding, surveillance, or oversight, that it is in the public interest and safety of air commerce to require a limitation; and (C) for each function that is limited under subparagraph (B), work with the ODA holder to develop the ODA holder’s capability to execute that function safely and effectively, and to return to full authority status. (2) Duties of ODA holders An ODA holder shall— (A) perform each specified function delegated to the ODA holder in accordance with the approved procedures manual for the delegation; (B) make the procedures manual available to each member of the appropriate ODA unit; and (C) cooperate fully with oversight activities conducted by the Administrator in connection with the delegation. (3) Existing ODA holders With regard to an ODA holder operating under a procedures manual approved by the Administrator before the date of enactment of the Federal Aviation Administration Reauthorization Act of 2017 , the Administrator shall— (A) at the request of the ODA holder, and in an expeditious manner, consider revisions to the ODA holder’s procedures manual; (B) delegate fully to the ODA holder each of the functions specified in the procedures manual, unless the Administrator determines, after the date of the delegation and as a result of an accident finding, surveillance, or oversight, that it is in the public interest and safety of air commerce to require a limitation