Invalidate
Invalidate means the action TSA takes to make a credential inoperative when it is reported as lost, stolen, damaged, no longer needed, or when TSA determines an applicant does not meet the security threat assessment standards of 49 CFR part 1572.
Source
49 CFR § 1570.3
Scoping language
In addition to the definitions in 1500.3, 1500.5, and 1503.202 of subchapter A, the following terms are used in this subchapter: