As a Federal Aviation Regulations Part 135 operator Global Jet Shares' affiliate partner, Sierra West, is regulated in the same fashion as major US commercial airlines and requires the following:

    Additional crew training requirements
    Safer crew rest requirements
    Regular crew drug testing
    Required background checks on pilots
    Mandatory recurrent training procedures
    Stricter runway requirements
    Stricter weather minimums
    Stricter maintenance requirements
    FAA certification and oversight of aircraft and equipment
    Stricter continuous and periodic training
    Continuous auditing by the FAA
    Better security

Sierra West is also ARG/US-rated, which requires standards much higher than the FAA.