Is HSPD 12 A Security Clearance?

Is HSPD 12 A Security Clearance? HSPD-12, “Policies for a Common Identification Standard for Federal Employees and Contractors,” was signed in August 2004 and is one of three major federal personnel security programs. The other two programs encompass national security clearances and federal employment suitability/fitness. When did HSPD-12 start? Homeland Security Presidential Directive (HSPD) 12,