32 C.F.R. § 147.33
Temporary eligibility for access must satisfy these minimum investigative standards, but agency heads may establish additional requirements based on the sensitivity of the particular, identified categories of classified information necessary to perform the lawful and authorized functions that are the basis for granting temporary eligibility for access. However, no additional requirements shall exceed the common standards for background investigations developed under section 3.2(b) of Executive Order 12968. Temporary eligibility for access is valid only at the agency granting it and at other agencies who expressly agree to accept it and acknowledge understanding of its investigative basis. It is further subject to limitations specified in sections 2.4(d) and 3.3 of Executive Order 12968, Access to Classified Information.
32 C.F.R. §147.33