Can Your Employer Polygraph You? EPPA Exception Guide

The Federal Law That Protects You

The Employee Polygraph Protection Act of 1988 (EPPA) is a United States federal law that generally prevents employers from using polygraph (lie detector) tests, either for pre-employment screening or during the course of employment, with certain exemptions Verified State-by-State Guide to Polygraph Licensing
Confirms polygraph examiner licensing requirements vary significantly by state and include training, background checks, and examinations. Some states like Alabama, Texas, Virginia, and Oregon have formal state licensing boards and comprehensive requirements including approved training programs, background checks, and state-administered examinations Verified Polygraph Licensing Requirements by State
Confirms Texas requires 400 hours of training; approximately 4,000 licensed polygraph examiners in U.S. as of 2021.

The American Polygraph Association has consistently supported licensing efforts throughout the country and encourages efforts to establish proper qualifications for polygraph examiners [10]Verified Polygraph Frequently Asked Questions - American Polygraph Association
Confirms 62% of surveyed law enforcement agencies had active polygraph screening programs; APA supports licensing efforts. Aspiring polygraph professionals can explore accredited programs at schools like PEAK Credibility Assessment Training in Florida, Marston Polygraph Academy in California, the American International Institute of Polygraph in Georgia, or the National Center for Credibility Assessment at Fort Jackson, SC.

Examiner Conduct and Record-Keeping

Under the EPPA, examiners must follow strict procedural standards during all three phases of the examination: the pretest, testing, and post-testing phases [14]Verified Employment Law Guide - Lie Detector Tests (DOL)
Confirms DOL official guidance on EPPA notice requirements, recordkeeping obligations, and enforcement authority. The examiner must provide the employee with the polygraph test questions in writing and have the employee write out their answers and sign the question sheet for verification of review [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements. The examiner must inform the employee of the results and allow an opportunity to explain any physiological responses [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements.

All polygraph examiners must maintain all opinions, reports, charts, written questions, lists, and other records relating to polygraph tests for a minimum period of 3 years after administration of the test [3]Verified Employee Polygraph Protection Act (Full Text)
Confirms complete statutory text including exemption conditions, examinee rights, and penalty provisions. Examiners must also keep a log of company name, employee name, date, and times for all polygraph tests conducted during the day [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements. Results must only be based on the polygraph test results and should not be based on behavioral observations [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements. Opinions of deception or non-deception must be provided in writing [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements.

For a detailed breakdown of record-keeping obligations, visit our Polygraph Examiner Record-Keeping: APA Compliance Guide.

How State Laws Interact with EPPA

Section 10 of the EPPA provides that the Act does not preempt any provision of a state or local law, or any provision of a collective bargaining agreement, that prohibits lie detector tests or is more restrictive with respect to their use [4]Verified 29 CFR Part 801 — Application of the Employee Polygraph Protection Act of 1988
Confirms implementing regulations including definitions, exemption requirements, state law preemption, and enforcement provisions. This means that if your state has stricter polygraph protections than the federal EPPA, the state law controls.

For example, if a state prohibits the use of polygraphs in all private employment, polygraph examinations could not be conducted pursuant to the limited exemptions provided in sections 7(d), (e), or (f) of the Act [4]Verified 29 CFR Part 801 — Application of the Employee Polygraph Protection Act of 1988
Confirms implementing regulations including definitions, exemption requirements, state law preemption, and enforcement provisions. A collective bargaining agreement that provides greater protection to an examinee would also apply in addition to the protection provided by the EPPA [4]Verified 29 CFR Part 801 — Application of the Employee Polygraph Protection Act of 1988
Confirms implementing regulations including definitions, exemption requirements, state law preemption, and enforcement provisions. Conversely, EPPA's industry exemptions and applicable restrictions preempt less restrictive exemptions established by state law for the same industry [4]Verified 29 CFR Part 801 — Application of the Employee Polygraph Protection Act of 1988
Confirms implementing regulations including definitions, exemption requirements, state law preemption, and enforcement provisions.

The EPPA also does not impede the ability of state and local governments to enforce existing statutes or to enact subsequent legislation restricting the use of lie detectors with respect to public employees [4]Verified 29 CFR Part 801 — Application of the Employee Polygraph Protection Act of 1988
Confirms implementing regulations including definitions, exemption requirements, state law preemption, and enforcement provisions. This creates a complex patchwork of overlapping federal and state regulations that employers must carefully navigate.

States with Complete or Near-Complete Bans

Several states have enacted laws that go significantly beyond the EPPA's protections, effectively banning all employer polygraph use regardless of federal exemptions:

California stands out for its absolute ban on polygraph testing, even for roles that fall under EPPA exemptions at the federal level [5]Verified Lie Detectors and Labor Laws: The Employee Polygraph Protection Act
Confirms California's absolute ban under Labor Code Section 432.2 and state-level variations beyond EPPA. Under California Labor Code Section 432.2, employers cannot require, request, or suggest polygraph tests for any position — including armed security guards [5]Verified Lie Detectors and Labor Laws: The Employee Polygraph Protection Act
Confirms California's absolute ban under Labor Code Section 432.2 and state-level variations beyond EPPA. Employers in California must rely on alternative screening methods such as background checks, psychological evaluations, or comprehensive reference checks [5]Verified Lie Detectors and Labor Laws: The Employee Polygraph Protection Act
Confirms California's absolute ban under Labor Code Section 432.2 and state-level variations beyond EPPA. The California Association of Polygraph Examiners can provide guidance on lawful polygraph uses in the state.

New York law is similarly restrictive. Under N.Y. Labor Law §§ 733 to 739, employers may not require, request, suggest, permit, or use results of a lie detector test [19]Verified Are Polygraph Tests Legal at Work? — Moshe's Law
Confirms New York Labor Law §§ 733-739 prohibits employer polygraph use for both private and public employers. This ban applies to all employers — both private and public — making it one of the broadest prohibitions in the nation [19]Verified Are Polygraph Tests Legal at Work? — Moshe's Law
Confirms New York Labor Law §§ 733-739 prohibits employer polygraph use for both private and public employers.

Alaska has the strictest provisions in the country — even the mere suggestion of a polygraph by an employer is prohibited [15]Verified EPPA Rights Explained: A Step-by-Step Guide for U.S. Workers
Confirms Alaska has strictest prohibition, Vermont's gems/jewelry exemption, and that criminal fines can reach $20,000. States like Massachusetts, Michigan, and New Jersey also impose similar restrictions, making employer polygraph use nearly impossible [5]Verified Lie Detectors and Labor Laws: The Employee Polygraph Protection Act
Confirms California's absolute ban under Labor Code Section 432.2 and state-level variations beyond EPPA.

Vermont offers a unique variation, providing a specific exemption allowing polygraph tests for employees with access to precious gems or jewelry [15]Verified EPPA Rights Explained: A Step-by-Step Guide for U.S. Workers
Confirms Alaska has strictest prohibition, Vermont's gems/jewelry exemption, and that criminal fines can reach $20,000. Several states also provide that an employee who volunteers to take a lie detector test may be given one, with safeguards requiring that tests be administered under approved and supervised conditions [2]Verified State Laws on Polygraphs and Lie Detector Tests
Confirms EPPA covers all private employers in interstate commerce and provides 48-hour notice requirement.

States with Moderate Regulation

Many states follow the EPPA framework closely while adding their own procedural requirements, licensing standards, or additional protections. Wisconsin, for example, has its own Wisconsin Fair Employment Act that also restricts the use of lie detector tests in an employment context, adding a layer of state-level protection beyond the EPPA [20]Verified Federal EPPA Lists Rules for Lie Detector Tests - Axley Brynelson, LLP
Confirms EPPA penalty of not more than $10,000 per violation and that Wisconsin Fair Employment Act adds additional restrictions.

West Virginia state law restricts employers from requiring any employee or prospective employee to submit to a polygraph examination for the purpose of screening new hires or continuing employment, other than law enforcement agencies and companies involved in the manufacture, storage, distribution, or sale of controlled substances [21]Verified Polygraph Examiner License Requirements - West Virginia
Confirms West Virginia restricts employer polygraph use with exceptions for law enforcement and controlled substance companies. The state also sets specific requirements and procedures for licensing polygraph examiners [21]Verified Polygraph Examiner License Requirements - West Virginia
Confirms West Virginia restricts employer polygraph use with exceptions for law enforcement and controlled substance companies.

States with their own polygraph examiner licensing boards — including Alabama, Texas, Virginia, Oregon, Oklahoma, South Carolina, and others — add additional layers of professional regulation that examiners must satisfy [17]Verified State Licensing Boards & Associations - American Polygraph Association
Confirms which states require licensing vs. no license required, lists state licensing board contact information. The Texas Association of Polygraph Examiners and the Virginia Polygraph Association serve as excellent resources for understanding state-specific requirements in those jurisdictions.

States That Follow EPPA Without Additional Restrictions

A number of states have no specific statute addressing employer polygraph testing beyond the federal EPPA [2]Verified State Laws on Polygraphs and Lie Detector Tests
Confirms EPPA covers all private employers in interstate commerce and provides 48-hour notice requirement. In these states, the EPPA itself provides the floor of protection for private-sector employees. If a state has no specific statute, there may still be a state administrative regulation or local ordinance that controls polygraph tests — employees should contact their state labor department for specific information [2]Verified State Laws on Polygraphs and Lie Detector Tests
Confirms EPPA covers all private employers in interstate commerce and provides 48-hour notice requirement.

However, even in these states, examiners may need to satisfy state licensing requirements to practice. The APA maintains a list of state polygraph licensing boards and associations that can help practitioners understand their specific obligations [17]Verified State Licensing Boards & Associations - American Polygraph Association
Confirms which states require licensing vs. no license required, lists state licensing board contact information. State associations like the Ohio Polygraph Association, Georgia Polygraph Association, and Florida Polygraph Association are valuable resources for both practitioners and the public.

Mandatory Workplace Posting

Every employer subject to EPPA shall post and keep posted on its premises a notice explaining the Act [4]Verified 29 CFR Part 801 — Application of the Employee Polygraph Protection Act of 1988
Confirms implementing regulations including definitions, exemption requirements, state law preemption, and enforcement provisions. Such notice must be posted in a prominent and conspicuous place in every establishment of the employer where it can readily be observed by employees and applicants for employment [4]Verified 29 CFR Part 801 — Application of the Employee Polygraph Protection Act of 1988
Confirms implementing regulations including definitions, exemption requirements, state law preemption, and enforcement provisions. The EPPA poster is one of the mandatory federal postings every U.S. employer must display [22]Verified What Employers Need to Know About the Employee Polygraph Protection Act
Confirms EPPA poster is one of six mandatory federal postings all U.S. employers must display. The poster is available in both English and Spanish from the Department of Labor, though posting in Spanish is optional [14]Verified Employment Law Guide - Lie Detector Tests (DOL)
Confirms DOL official guidance on EPPA notice requirements, recordkeeping obligations, and enforcement authority.

Failure to display the required poster can itself be considered a violation of the Act. The poster informs applicants and employees of their protections, the exemptions that exist under the law, and how to file a complaint [22]Verified What Employers Need to Know About the Employee Polygraph Protection Act
Confirms EPPA poster is one of six mandatory federal postings all U.S. employers must display.

Record-Keeping and Documentation

Employers and polygraph examiners must retain required records for a minimum of three years from the date the polygraph examination is conducted (or from the date the examination is requested if no examination is conducted) [14]Verified Employment Law Guide - Lie Detector Tests (DOL)
Confirms DOL official guidance on EPPA notice requirements, recordkeeping obligations, and enforcement authority. Employers investigating an economic loss or injury must maintain a copy of the statement that sets forth the specific incident or activity under investigation and the basis for testing that particular employee, along with proof of service of that statement to the examinee [14]Verified Employment Law Guide - Lie Detector Tests (DOL)
Confirms DOL official guidance on EPPA notice requirements, recordkeeping obligations, and enforcement authority.

Employers who manufacture, distribute, or dispense controlled substances must maintain records specifically identifying the loss or injury in question and the nature of the employee's access to the person or property that is the subject of the investigation [14]Verified Employment Law Guide - Lie Detector Tests (DOL)
Confirms DOL official guidance on EPPA notice requirements, recordkeeping obligations, and enforcement authority. All records must be kept safe and accessible at the place of employment or at one or more established central recordkeeping offices [14]Verified Employment Law Guide - Lie Detector Tests (DOL)
Confirms DOL official guidance on EPPA notice requirements, recordkeeping obligations, and enforcement authority.

Civil Penalties: Up to $10,000 Per Violation

There is a $10,000 penalty for EACH violation of the EPPA [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements. The Secretary of Labor may bring court actions to restrain violations and assess civil penalties against violators [23]Verified Polygraph Protection Act - Boston University HR
Confirms Secretary of Labor may assess civil penalties of up to $10,000 against violators. In determining the amount of any penalty, the Secretary takes into account the previous record of compliance and the gravity of the violation [3]Verified Employee Polygraph Protection Act (Full Text)
Confirms complete statutory text including exemption conditions, examinee rights, and penalty provisions.

Failure to satisfy any of the specified requirements for the exemptions nullifies the statutory authority for polygraph test administration and may subject the employer to the assessment of civil money penalties and other remedial actions [4]Verified 29 CFR Part 801 — Application of the Employee Polygraph Protection Act of 1988
Confirms implementing regulations including definitions, exemption requirements, state law preemption, and enforcement provisions. This means that even an employer who technically qualifies for an exemption can lose that protection entirely if it fails to follow the proper procedures.

An employer who violates the law may also be liable to the employee or prospective employee for appropriate legal and equitable relief, which may include employment, reinstatement, promotion, and payment of back wages [14]Verified Employment Law Guide - Lie Detector Tests (DOL)
Confirms DOL official guidance on EPPA notice requirements, recordkeeping obligations, and enforcement authority. The deadline for an employee to file a legal action is within three years of the violation [24]Verified Lie Detector Tests: The Employee Polygraph Protection Act of 1988 - FindLaw
Confirms 3-year deadline for filing legal actions and that EPPA does not override stricter state laws.

Employee Remedies and How to File Complaints

Employees and prospective employees may bring their own civil actions against any employer who violates the provisions of the EPPA Verified H.R.1212 — Employee Polygraph Protection Act of 1988
Confirms official legislative record of EPPA including exemptions for government, federal contractors, and ongoing investigations. The Wage and Hour Division of the U.S. Department of Labor is the federal agency responsible for enforcing the EPPA and accepts complaints of alleged violations [14]Verified Employment Law Guide - Lie Detector Tests (DOL)
Confirms DOL official guidance on EPPA notice requirements, recordkeeping obligations, and enforcement authority.

If you believe your employer has violated your EPPA rights, your first step is to inform the examiner [15]Verified EPPA Rights Explained: A Step-by-Step Guide for U.S. Workers
Confirms Alaska has strictest prohibition, Vermont's gems/jewelry exemption, and that criminal fines can reach $20,000. If unresolved, you should write a detailed letter to the nearest Department of Labor Wage and Hour Division (WHD) office [15]Verified EPPA Rights Explained: A Step-by-Step Guide for U.S. Workers
Confirms Alaska has strictest prohibition, Vermont's gems/jewelry exemption, and that criminal fines can reach $20,000. Beyond fines, employees subjected to illegal testing can sue for lost wages and attorney's fees [15]Verified EPPA Rights Explained: A Step-by-Step Guide for U.S. Workers
Confirms Alaska has strictest prohibition, Vermont's gems/jewelry exemption, and that criminal fines can reach $20,000.

Police and investigators are not exempt from the EPPA and must comply if they are conducting an employment-related polygraph test [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements. Information about a polygraph provided to the employer by a police officer or investigator is prohibited under the Act, since employers are not allowed to use, accept, or inquire about the results [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements. For more information about the legal landscape of polygraph testing, explore our Polygraph Research Database or contact us for a professional consultation.

For Employers Considering Polygraph Testing

If you are a private employer considering polygraph testing, the following steps will help ensure compliance [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements:

1. Consult your corporate attorney to review your actions and assure EPPA compliance before requesting any test 2. Verify that you qualify under a specific exemption — the ongoing investigation, security services, or controlled substances exemption 3. Prepare all required written statements using your company letterhead 4. Ensure the written statement includes all required elements: identification of the company, description of the loss under investigation, specific amount of the loss, how the employee had access, and the basis for reasonable suspicion [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements 5. Provide the employee with 48 hours advance notice (not counting weekends or holidays) before the scheduled test [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements 6. Check the credentials of the polygraph examiner and verify that they meet EPPA requirements including proper state licensure and minimum $50,000 liability coverage [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements 7. Maintain all records for a minimum of 3 years [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements

Remember that access alone is not sufficient grounds for polygraph testing — you must have articulable reasonable suspicion [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements. You can book a professional EPPA-compliant polygraph test through our network of qualified examiners, or view polygraph test locations near you.

For Employees Facing a Polygraph Request

If your employer asks you to take a polygraph test, understanding your rights is critical:

1. Know your right to refuse: In most circumstances under the EPPA, you cannot be required to take a test and cannot be punished for refusing [1]Verified Employee Polygraph Protection Act - Wikipedia
Confirms EPPA is a 1988 federal law preventing most employers from using polygraph tests with certain exemptions 2. Review the written notice: Your employer must provide extensive written documentation before any test [14]Verified Employment Law Guide - Lie Detector Tests (DOL)
Confirms DOL official guidance on EPPA notice requirements, recordkeeping obligations, and enforcement authority 3. Consult an attorney: You have the right to consult with legal counsel before each phase of the test [14]Verified Employment Law Guide - Lie Detector Tests (DOL)
Confirms DOL official guidance on EPPA notice requirements, recordkeeping obligations, and enforcement authority 4. You can stop the test at any time: During the examination, you have the absolute right to terminate [3]Verified Employee Polygraph Protection Act (Full Text)
Confirms complete statutory text including exemption conditions, examinee rights, and penalty provisions 5. Know your prohibited topics: The examiner cannot ask about religious beliefs, sexual behavior, political beliefs, racial matters, or union activities [3]Verified Employee Polygraph Protection Act (Full Text)
Confirms complete statutory text including exemption conditions, examinee rights, and penalty provisions 6. Request results: After the test, you have the right to be informed of the results and to explain any reactions [9]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA effective December 27, 1988, $10,000 penalty per violation, 90-minute minimum test, 5-test daily limit, and examiner checklist requirements 7. File a complaint: If your rights are violated, file a complaint with the DOL Wage and Hour Division or bring a civil action within three years [14]Verified Employment Law Guide - Lie Detector Tests (DOL)
Confirms DOL official guidance on EPPA notice requirements, recordkeeping obligations, and enforcement authority

Our polygraph test prices page provides transparent information about testing costs, and our polygraph training resources explain the professional standards that examiners must meet. For insights into how polygraph testing has been depicted in popular culture versus reality, check out our analysis of Breaking Bad & Better Call Saul polygraph scenes.

Why Workplace Polygraph Testing Remains Valuable

Despite the restrictions imposed by the EPPA, polygraph testing continues to serve a critical role in a variety of workplace contexts. For government agencies, law enforcement departments, and intelligence organizations, polygraph screening remains one of the most effective tools for vetting applicants and maintaining the integrity of sensitive positions [10]Verified Polygraph Frequently Asked Questions - American Polygraph Association
Confirms 62% of surveyed law enforcement agencies had active polygraph screening programs; APA supports licensing efforts.

The EPPA itself recognizes the legitimate value of polygraph testing by preserving exemptions for industries where trust and security are paramount — security service firms protecting critical infrastructure, pharmaceutical companies safeguarding controlled substances, and employers investigating specific economic losses [12]Verified EPPA (Employee Polygraph Protection Act): The Fine Print
Confirms three groups of exempt employees and detailed analysis of EPPA provisions and state law interaction. These exemptions reflect Congress's understanding that properly administered polygraph examinations serve important protective functions.

The American Polygraph Association continues to support the development of professional standards and best practices that ensure polygraph examinations are conducted ethically, scientifically, and in full compliance with both federal and state law [10]Verified Polygraph Frequently Asked Questions - American Polygraph Association
Confirms 62% of surveyed law enforcement agencies had active polygraph screening programs; APA supports licensing efforts. The historical development of polygraph law, including its use across different eras and contexts, is explored in depth in our articles on polygraph in the civil rights era and the polygraph at Nuremberg Verified Criminal Law: Right to Counsel — State ex rel. Sheppard v. Koblentz (Ohio 1962)
Foundational research relevant to the legal framework governing polygraph testing and individual rights.

Internationally, the use of polygraph testing in employment and government contexts continues to grow. Countries like Ghana and Madagascar are exploring or mandating polygraph testing for government officials as part of anti-corruption efforts, demonstrating the enduring global recognition of polygraph technology's value.

Hiring a Nanny or Household Employee

A common question is whether the EPPA applies to household employment situations, such as hiring a nanny. The EPPA covers employers engaged in interstate commerce, which could potentially include some household employers. However, the application of the EPPA to domestic employees depends on the specific circumstances and whether the household employer is engaged in interstate commerce. Our dedicated guide on polygraph testing before hiring a nanny provides comprehensive legal analysis for parents navigating this situation.