Texas employers weighing whether to ask staff about workplace misconduct must respect strict federal limits before requesting a lie detector test — this EPPA guide maps out what's permitted and what isn't.
A comprehensive guide to the Employee Polygraph Protection Act (EPPA) for Texas employers, covering federal requirements, state-specific considerations, lawful exemptions, employee rights, and compliance best practices for workplace polygraph testing in the Lone Star State.
TL;DR — The Short Version
- The EPPA is a federal law that prohibits most private Texas employers from requiring or requesting employees to take polygraph tests, with specific exemptions for ongoing investigations, security firms, and pharmaceutical companies.
- Texas eliminated its state-level polygraph examiner licensing in 2021 via HB 1560, but EPPA still requires examiners to meet federal standards and maintain $50,000 in professional liability coverage.
- Employers who violate EPPA face civil penalties up to $10,000 per violation, plus potential lawsuits for reinstatement, back pay, and legal fees.
- The ongoing investigation exemption allows Texas employers to request — but never require — a polygraph when specific economic loss has occurred, the employee had access, and reasonable suspicion exists.
- Texas SB 2180 (effective September 1, 2025) introduces new certification requirements for peace officers conducting polygraph examinations in law enforcement contexts.
Who This Guide Is For
- Texas private-sector employers investigating workplace theft or economic loss
- HR directors and compliance officers at Texas businesses
- Security firms and pharmaceutical companies operating in Texas
- Texas employees who have been asked to take a workplace polygraph test
- Employment attorneys advising clients on EPPA compliance in Texas
- Polygraph examiners conducting EPPA-compliant tests in Texas
What Is the Employee Polygraph Protection Act (EPPA)?
Federal Foundation of Workplace Polygraph Law
The Employee Polygraph Protection Act of 1988 (EPPA) is a 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 Breakdown of Polygraph Licensing Requirements
Confirms Texas polygraph licensing was overseen by TDLR and required completion of training at an accredited school and passage of a state exam.
However, a significant regulatory change occurred in 2021 when the Texas Legislature passed HB 1560, which repealed Chapter 1703 (Polygraph Examiners) of the Occupations Code and abolished the Polygraph Advisory Committee Verified State-by-State Guide to Polygraph Licensing
Confirms Texas licensing requirements included TDLR-approved training, written and practical examinations, background check, and supervised experience, maintains a minimum of $50,000 in professional liability coverage as required by EPPA [12]Verified Employee Polygraph Protection Act - Full Text (29 U.S.C. § 2001-2009)
Confirms the full statutory text of EPPA including ongoing investigation exemption criteria, pharmaceutical exemption, examiner qualifications, and testing phase requirements, has experience conducting EPPA-compliant workplace examinations, and follows all federal procedural requirements for pre-test, testing, and post-test phases.
The Texas Department of Public Safety maintains a Law Enforcement Polygraph School that provides rigorous training [10]Verified Texas DPS Law Enforcement Polygraph School Catalog
Confirms Texas DPS administered its first polygraph exam in July 1944 and provides history of polygraph services in Texas law enforcement. Examiners who have graduated from accredited programs — whether the DPS program or another APA-accredited institution — bring the highest level of professionalism to workplace examinations.
For guidance on selecting a qualified examiner, consult our resource on whether you can trust the polygraph examiner, explore polygraph test pricing, or find an examiner near you through our polygraph test locations directory.
Practical Applications for Texas Industries
Addressing Employee Theft in Texas Workplaces
Employee theft remains a major challenge for Texas businesses. The U.S. Chamber of Commerce estimates that 75% of employees will steal at least once, with employee theft costing American companies between $20 billion and $40 billion per year [31]Verified Houston Workplace Theft Lawyer
Confirms U.S. Chamber of Commerce estimates that 75% of employees will steal at least once and employee theft costs $20-40 billion annually. Certified fraud examiners estimate that over 95% of U.S. businesses have been victims of employee theft at some point [14]Verified 50 Alarming Employee Theft Statistics & Data (2025)
Confirms that 95% of U.S. businesses have been victims of employee theft.
Texas law treats workplace theft seriously, and the consequences for employees can be severe — theft of items exceeding $2,500 in value constitutes a felony offense in Texas Verified Workplace Theft in Texas: Felony Thresholds
Confirms that theft exceeding $2,500 in value is a felony offense in Texas. For employers, the EPPA ongoing investigation exemption provides a structured, legal framework for using polygraph testing as part of a comprehensive investigation into suspected theft, embezzlement, or fraud.
The polygraph examination, when conducted in full EPPA compliance, serves as a powerful investigative tool that can help resolve workplace theft cases efficiently. Combined with other evidence, polygraph results can help Texas employers make informed decisions while protecting the rights of all parties involved. Learn more about how companies address this issue through our guides on employee theft investigation in NYC and polygraph vs. private investigator.
Texas Energy and Security Sectors
Texas's massive energy, petrochemical, and defense industries create a significant demand for polygraph testing under EPPA's security services and federal contractor exemptions. Companies operating critical infrastructure, handling sensitive materials, or performing work under federal contracts often incorporate polygraph testing into their security protocols.
The security services exemption allows armored car companies, alarm companies, and security guard firms to conduct pre-employment polygraph screening of prospective employees [1]Verified Employee Polygraph Protection Act - Wikipedia
Confirms EPPA was enacted in 1988 and provides general overview of the law's prohibitions and exemptions for security and pharmaceutical firms. In a state with as many high-value assets to protect as Texas — from oil refineries to data centers — this exemption enables employers to maintain robust security vetting processes while remaining fully compliant with federal law.
Ethical Considerations and Rights Protections
Balancing Employer Needs with Employee Rights
EPPA represents a carefully balanced framework that allows employers to use polygraph testing in legitimate circumstances while providing robust protections for employees. The Act provides that employees have a right to employment opportunities without being subjected to lie detector tests, unless a specific exemption applies [6]Verified Employment Law Guide - Lie Detector Tests (U.S. Department of Labor)
Confirms EPPA recordkeeping requirements including 3-year retention, poster requirements, notice provisions, and examiner licensing/bonding requirements.
Research on human rights and legal limits on the use of deception detection methods has emphasized the importance of maintaining this balance between investigative utility and individual protections [29]Verified Human Rights and Legal Limits on the Use of Deception Detection Methods
Foundational research on balancing deception detection methods against individual human rights within legal frameworks. Studies on neurorights and lie detection have further underscored the need for clear legal boundaries when deploying physiological assessment tools in employment and legal contexts [20]Verified Neurorights vs. neuroprediction and lie detection: The imperative limits to criminal law
Foundational research on the legal and ethical limits of using deception detection technology, emphasizing the need for clear boundaries in employment and legal contexts.
Personality research has also explored the relationship between suggestibility, compliance, and deception — finding that self-deception and other-deception did not significantly correlate with suggestibility or compliance scores, which reinforces the validity of properly administered polygraph examinations Verified The relationship of suggestibility and compliance with self-deception and other-deception
Confirms that self-deception and other-deception did not significantly correlate with suggestibility or compliance scores, supporting the validity of properly administered assessments. These findings support the position that well-conducted polygraph testing, performed by qualified examiners within the EPPA framework, provides reliable and valuable information for workplace investigations.
For a discussion of ethical considerations when testing minors, see our guide on using lie detector tests on children. For broader legal context, explore the Amanda Knox polygraph case analysis and State v. Lyons.
Identify the Specific Economic Loss
Document the specific incident or activity under investigation, including the nature and amount of the economic loss, the date and location, and the type of loss (theft, embezzlement, sabotage, etc.). General or recurring losses alone are insufficient — you need a specific incident.
Establish Employee Access and Reasonable Suspicion
Determine which employees had access to the property or area involved in the incident. Then establish a reasonable basis for suspecting specific employees. Access alone is not sufficient grounds for polygraph testing — you need additional evidence pointing to the individual.
Prepare the Written Statement
Draft a written statement identifying the specific economic loss, the employee's access, and the basis for reasonable suspicion. The statement must be signed by an authorized company representative (not the polygraph examiner) and provided to the employee before the test.
Provide 48-Hour Written Notice
Give the employee at least 48 hours' written notice (excluding weekends and holidays) of the date, time, and location of the examination, their right to consult legal counsel, and all examinee rights under EPPA.
Engage a Qualified Polygraph Examiner
Select an examiner who maintains at least $50,000 in professional liability coverage, is trained to APA standards or equivalent credentials, and is experienced in conducting EPPA-compliant workplace examinations. Since Texas no longer requires state licensing, professional credentials are especially important.
Conduct the Examination in Full Compliance
Ensure the test lasts at least 90 minutes, the examiner conducts no more than five tests that day, all questions were reviewed by the examinee in writing beforehand, and the examinee is informed of results and given an opportunity to explain any reactions.
Maintain Records for Three Years
Retain all documentation — the employer's written statement, notice to the examiner, examiner reports, charts, and all records related to the examination — for a minimum of three years from the date of the test.
Use Results Only with Additional Supporting Evidence
Never base an adverse employment action solely on polygraph results. Combine the polygraph findings with other supporting evidence before making any employment decisions. Maintain strict confidentiality of all test results.
Pros
- EPPA provides a clear legal framework enabling Texas employers to use polygraph testing in legitimate investigations involving economic loss
- The ongoing investigation exemption gives employers a powerful tool to address workplace theft, embezzlement, and sabotage
- Security firms and pharmaceutical companies in Texas can conduct pre-employment polygraph screening under EPPA exemptions
- Government employers in Texas are fully exempt from EPPA, allowing flexible use of polygraph testing for public safety positions
- Texas's permissive regulatory environment — with no state-level restrictions beyond EPPA — gives employers maximum lawful flexibility
- Properly conducted polygraph examinations provide valuable investigative information that can resolve workplace disputes efficiently
- New SB 2180 certification requirements for peace officers will further enhance polygraph credibility in Texas
Cons
- Strict EPPA procedural requirements mean that any compliance error can nullify the employer's authority to test and result in up to $10,000 in penalties per violation
- The 2021 elimination of Texas state polygraph licensing means employers must perform extra due diligence when selecting an examiner
- Employers can only request — never require — an employee to take a polygraph under the ongoing investigation exemption
- Adverse employment actions cannot be based solely on polygraph results; additional supporting evidence is always required
- The 48-hour advance written notice requirement means employers cannot request immediate testing in urgent situations
Frequently Asked Questions
Can a Texas employer require me to take a polygraph test?
In most cases, no. Under EPPA, most private employers cannot require, request, or suggest that an employee or job applicant take a lie detector test [1]Verified Employee Polygraph Protection Act - Wikipedia
Confirms EPPA was enacted in 1988 and provides general overview of the law's prohibitions and exemptions for security and pharmaceutical firms. However, there are exceptions for employees involved in an ongoing investigation of economic loss, employees of security service firms, and employees at pharmaceutical companies handling controlled substances [1]Verified Employee Polygraph Protection Act - Wikipedia
Confirms EPPA was enacted in 1988 and provides general overview of the law's prohibitions and exemptions for security and pharmaceutical firms. Even under these exceptions, the employer can only request — not require — the test, and cannot punish you for refusing [2]Verified Employee Polygraph Protection Act (EPPA) - American Polygraph Association
Confirms EPPA became law on December 27, 1988, provides employer and examiner compliance checklists, and confirms $10,000 penalty per violation.
What happens if a Texas employer violates EPPA?
An employer who violates EPPA may face civil penalties of up to $10,000 per violation [12]Verified Employee Polygraph Protection Act - Full Text (29 U.S.C. § 2001-2009)
Confirms the full statutory text of EPPA including ongoing investigation exemption criteria, pharmaceutical exemption, examiner qualifications, and testing phase requirements. The employee can also file a private lawsuit for reinstatement, promotion, and payment of lost wages and benefits [5]Verified Compliance Assistance - The Employee Polygraph Protection Act (EPPA)
Confirms the Wage and Hour Division enforces EPPA, employees' right to file private lawsuits, and potential employer liability for lost wages. Complaints can be filed with the Wage and Hour Division of the U.S. Department of Labor [5]Verified Compliance Assistance - The Employee Polygraph Protection Act (EPPA)
Confirms the Wage and Hour Division enforces EPPA, employees' right to file private lawsuits, and potential employer liability for lost wages. The Secretary of Labor can also bring court actions to restrain violations [8]Verified Federal EPPA Lists Rules for Lie Detector Tests - Axley Brynelson, LLP
Confirms EPPA covers all private employers affecting interstate commerce, prohibitions against requiring tests, and $10,000 penalty for violations.
Does Texas require polygraph examiners to be licensed?
No, Texas eliminated its state polygraph licensing requirement in 2021 when HB 1560 repealed Chapter 1703 of the Occupations Code [23]Verified HB 1560 Analysis - Texas Legislature (87th Session)
Confirms HB 1560 repealed Chapter 1703 (Polygraph Examiners) of the Occupations Code and abolished the Polygraph Advisory Committee effective September 2021. However, EPPA still requires that examiners maintain a minimum of $50,000 in professional liability coverage [12]Verified Employee Polygraph Protection Act - Full Text (29 U.S.C. § 2001-2009)
Confirms the full statutory text of EPPA including ongoing investigation exemption criteria, pharmaceutical exemption, examiner qualifications, and testing phase requirements, and employers should ensure their examiner holds credentials from the American Polygraph Association or equivalent organization.
Can Texas law enforcement agencies require polygraph tests for job applicants?
Yes. Government agencies, including law enforcement, are exempt from EPPA [1]Verified Employee Polygraph Protection Act - Wikipedia
Confirms EPPA was enacted in 1988 and provides general overview of the law's prohibitions and exemptions for security and pharmaceutical firms. The Texas Department of Public Safety, for example, requires applicants for peace officer positions to submit to a polygraph examination [11]Verified Texas Government Code Section 411.0074 - Polygraph Examinations for Certain Applicants
Confirms Texas DPS requires peace officer applicants to submit to polygraph examinations before commissioning. Additionally, Texas SB 2180 (effective September 2025) will require peace officers who conduct polygraph examinations to obtain TCOLE certification [25]Verified SB 2180 - 89th Texas Legislature Analysis
Confirms SB 2180 introduces TCOLE certification requirements for peace officers conducting polygraph examinations, effective September 1, 2025.
What qualifies as an 'ongoing investigation' under EPPA?
An ongoing investigation must involve a specific incident or activity resulting in economic loss or injury to the employer's business, such as theft, embezzlement, misappropriation, or industrial espionage [12]Verified Employee Polygraph Protection Act - Full Text (29 U.S.C. § 2001-2009)
Confirms the full statutory text of EPPA including ongoing investigation exemption criteria, pharmaceutical exemption, examiner qualifications, and testing phase requirements. General or recurring inventory shortages are not sufficient [13]Verified 29 CFR Part 801 - Application of the Employee Polygraph Protection Act of 1988
Confirms that random testing is precluded, the ongoing investigation must involve a specific incident, and EPPA does not preempt more restrictive state laws. The employer must identify a specific incident, demonstrate that the employee had access, and have reasonable suspicion of the employee's involvement [12]Verified Employee Polygraph Protection Act - Full Text (29 U.S.C. § 2001-2009)
Confirms the full statutory text of EPPA including ongoing investigation exemption criteria, pharmaceutical exemption, examiner qualifications, and testing phase requirements.
How long must my employer keep polygraph test records?
Both employers and polygraph examiners must retain all records related to the examination for a minimum of three years from the date the polygraph examination is conducted, or from the date the examination is requested if no test is actually conducted [6]Verified Employment Law Guide - Lie Detector Tests (U.S. Department of Labor)
Confirms EPPA recordkeeping requirements including 3-year retention, poster requirements, notice provisions, and examiner licensing/bonding requirements.
Can my Texas employer fire me based on polygraph test results?
An employer cannot take adverse action based solely on polygraph test results. EPPA requires additional supporting evidence before any discharge, discipline, or denial of promotion [3]Verified The truth about lie detectors in the workplace - McAfee & Taft
Confirms ongoing investigation exemption requirements, the request-only nature of testing, additional supporting evidence requirement, and confidentiality obligations. This additional evidence can include the same evidence that formed the original reasonable suspicion, as well as any statements made by the employee during the test [3]Verified The truth about lie detectors in the workplace - McAfee & Taft
Confirms ongoing investigation exemption requirements, the request-only nature of testing, additional supporting evidence requirement, and confidentiality obligations.
What rights do I have during a polygraph test in Texas?
Under EPPA, you have the right to: receive at least 48 hours' written notice before the test [17]Verified 29 CFR Part 801 Subpart C - Restrictions on Polygraph Usage Under Exemptions
Confirms 48-hour advance notice requirement, 90-minute minimum test duration, 5-test daily maximum, and examinee rights during all phases of testing; consult with a lawyer or employee representative before each phase [17]Verified 29 CFR Part 801 Subpart C - Restrictions on Polygraph Usage Under Exemptions
Confirms 48-hour advance notice requirement, 90-minute minimum test duration, 5-test daily maximum, and examinee rights during all phases of testing; review all test questions in writing before the test begins [12]Verified Employee Polygraph Protection Act - Full Text (29 U.S.C. § 2001-2009)
Confirms the full statutory text of EPPA including ongoing investigation exemption criteria, pharmaceutical exemption, examiner qualifications, and testing phase requirements; terminate the test at any time [17]Verified 29 CFR Part 801 Subpart C - Restrictions on Polygraph Usage Under Exemptions
Confirms 48-hour advance notice requirement, 90-minute minimum test duration, 5-test daily maximum, and examinee rights during all phases of testing; refuse to answer degrading or intrusive questions [17]Verified 29 CFR Part 801 Subpart C - Restrictions on Polygraph Usage Under Exemptions
Confirms 48-hour advance notice requirement, 90-minute minimum test duration, 5-test daily maximum, and examinee rights during all phases of testing; and not be asked about religion, politics, race, sexual behavior, or union activities [17]Verified 29 CFR Part 801 Subpart C - Restrictions on Polygraph Usage Under Exemptions
Confirms 48-hour advance notice requirement, 90-minute minimum test duration, 5-test daily maximum, and examinee rights during all phases of testing. The test must last at least 90 minutes [19]Verified Employee Polygraph Protection Act (EPPA) - APA Examiner Checklist
Confirms examiner requirements including $50,000 liability coverage, 5-test daily maximum, 90-minute minimum duration, and written question review requirement.
Does EPPA apply to small businesses in Texas?
Yes. EPPA covers all private employers whose operations affect interstate commerce, regardless of size [8]Verified Federal EPPA Lists Rules for Lie Detector Tests - Axley Brynelson, LLP
Confirms EPPA covers all private employers affecting interstate commerce, prohibitions against requiring tests, and $10,000 penalty for violations. There is no small business exemption. All private Texas employers must post the EPPA notice and comply with the Act's prohibitions. The EPPA poster is available from the Department of Labor in both English and Spanish [7]Verified EPPA Poster Requirements (U.S. DOL FirstStep Advisor)
Confirms EPPA poster is available in English and Spanish, with Spanish posting optional, and details notice requirements for examinees.
Where can I book a lie detector test in Texas?
Sources & References
Confirms EPPA was enacted in 1988 and provides general overview of the law's prohibitions and exemptions for security and pharmaceutical firms
Confirms EPPA became law on December 27, 1988, provides employer and examiner compliance checklists, and confirms $10,000 penalty per violation
Confirms ongoing investigation exemption requirements, the request-only nature of testing, additional supporting evidence requirement, and confidentiality obligations
Confirms Representative Pat Williams introduced EPPA in February 1987 and President Reagan signed it on June 27, 1988
Confirms the Wage and Hour Division enforces EPPA, employees' right to file private lawsuits, and potential employer liability for lost wages
Confirms EPPA recordkeeping requirements including 3-year retention, poster requirements, notice provisions, and examiner licensing/bonding requirements
Confirms EPPA poster is available in English and Spanish, with Spanish posting optional, and details notice requirements for examinees
Confirms EPPA covers all private employers affecting interstate commerce, prohibitions against requiring tests, and $10,000 penalty for violations
Foundational research on international human rights standards for consent and data protection in polygraph examination
Confirms Texas DPS administered its first polygraph exam in July 1944 and provides history of polygraph services in Texas law enforcement
Confirms Texas DPS requires peace officer applicants to submit to polygraph examinations before commissioning
Confirms the full statutory text of EPPA including ongoing investigation exemption criteria, pharmaceutical exemption, examiner qualifications, and testing phase requirements
Confirms that random testing is precluded, the ongoing investigation must involve a specific incident, and EPPA does not preempt more restrictive state laws
Confirms that 95% of U.S. businesses have been victims of employee theft
Confirms that EPPA excludes federal, state and local government agencies from coverage, and lie detector tests may be administered to federal contractor employees in national security roles
Confirms examinee rights including the right to written notice, right to refuse or discontinue, and right to confidentiality of results
Confirms 48-hour advance notice requirement, 90-minute minimum test duration, 5-test daily maximum, and examinee rights during all phases of testing
Foundational research showing that constitutional rights were not effectively protected in practice despite formal compliance, highlighting the importance of clear communication of rights
Confirms examiner requirements including $50,000 liability coverage, 5-test daily maximum, 90-minute minimum duration, and written question review requirement
Foundational research on the legal and ethical limits of using deception detection technology, emphasizing the need for clear boundaries in employment and legal contexts
Confirms the historical Texas Polygraph Examiners Act including licensing requirements, TDLR oversight, and surety bond requirements
Confirms HB 1560 repealed Chapter 1703 (Polygraph Examiners) of the Occupations Code and abolished the Polygraph Advisory Committee effective September 2021
Confirms the Texas Legislature eliminated polygraph examiner licensing in 2021 via HB 1560
Confirms SB 2180 introduces TCOLE certification requirements for peace officers conducting polygraph examinations, effective September 1, 2025
Confirms transition period with officers not required to comply until January 1, 2027
Confirms TCOLE formed the Law Enforcement Polygraph Examinations Advisory Committee to draft rules under SB 2180, with findings expected by July 2026
Confirms EPPA does not preempt more restrictive state or local laws, and provides examples of state preemption scenarios
Foundational research on balancing deception detection methods against individual human rights within legal frameworks
Confirms U.S. Chamber of Commerce estimates that 75% of employees will steal at least once and employee theft costs $20-40 billion annually
Confirms that theft exceeding $2,500 in value is a felony offense in Texas
Confirms that self-deception and other-deception did not significantly correlate with suggestibility or compliance scores, supporting the validity of properly administered assessments
If a workplace matter in Texas requires testing, arrange a legal polygraph test conducted by an experienced professional within the law.