What certification may allow a SIC to log time as PIC?

The certification that enables a Second in Command (SIC) to log time as Pilot in Command (PIC) is the Airline Transport Pilot License (ATPL). This is because, under FAA regulations, an SIC can only log PIC time when they are acting as PIC in specific situations, such as when they have the appropriate category and class ratings, as well as the necessary clearance to operate the aircraft.

The ATPL is the highest level of aircraft pilot certification and allows a pilot to act as PIC on multi-pilot aircraft in airline operations. It is recognized that possessing an ATPL signifies a higher level of experience and training, which aligns with the roles and responsibilities expected of a PIC.

Other certificates, such as the Student Pilot Certificate, Private Pilot License, or Commercial Pilot License, do not have the same broad authority regarding logging time as PIC when serving in the SIC position in a multi-pilot environment. These certifications may have restrictions that prevent SICs from logging PIC time unless they are specifically acting as the pilot in command in a different context, such as flying solo or operating under flight rules pertaining to those certificates.