# EPPA — US federal employment law thresholds by employee count

For EPPA, full name is Employee Polygraph Protection Act; employee threshold is 1; requirement is if you are a private employer, you cannot use a lie detector test for pre-employment screening or during the course of employment unless you meet certain exceptions, verified against its source on 2026-08-04.

- **Law:** EPPA
- **Full name:** Employee Polygraph Protection Act
- **Employee threshold:** 1
- **Requirement:** if you are a private employer, you cannot use a lie detector test for pre-employment screening or during the course of employment unless you meet certain exceptions

## What the source says

> Employee Polygraph Protection Act (EPPA)

## Source

- https://stratus.hr/resources/federal-law-breakdown-how-many-employees

Last verified: 2026-08-04. Review by: 2027-08-04.
Part of [US federal employment law thresholds by employee count](https://referencesource.org/regulatory-threshold-triggers/).