This list is not exhaustive, but includes industries that can be directly impacted by changes in U.S. production and sales of motor vehicles. Below are definitions of these industries.
Some federal clearances for Sensitive Compartment Information (SCI) and other Special Access Programs (SAP) require a polygraph screening examination in addition to a Single Scope Background Investigation.
This is hierarchically the first security clearance to get, typically requiring a few weeks to a few months of investigation. A Confidential clearance requires a NACLC investigation which dates back 7 years on the subject's record and must be renewed (with another investigation) every 15 years. Secret