What it is
Most reference checks confirm dates, title, and eligibility to be rehired, and many companies route the call through HR with a scripted answer. The record that drives the answer is the file the employer keeps: the termination wording, the PIP, and the exit interview notes.
What to do about it: Get the separation wording in writing before your systems access ends. A neutral written line, dated and signed, is what protects the next offer.
Plain-language description of US practice, not legal, tax, or financial advice. The paired guide carries the citations, dates, and thresholds; the state pages carry the local windows.