Pre-Employment Medical Exam Laws in Illinois

The Americans with Disabilities Act (ADA), codified at 42 U.S.C. § 12112(d), establishes strict rules on when employers can conduct medical exams during the hiring process. Federal law applies to employers with 15 or more employees. Under the ADA, employers cannot require any medical exam or make any disability-related inquiry of a job applicant before extending a conditional job offer. This is the critical threshold—the offer must be made first, contingent on passing a medical exam.

After a conditional job offer, employers may require a medical exam only if the exam is job-related and consistent with business necessity. If an employer administers medical exams post-offer, it must administer the same exam to all applicants in the same job category, without exception. Results must be kept strictly confidential and stored separately from personnel files. The EEOC, which enforces the ADA, clarifies that exams can include vital signs, blood tests, and drug screening but cannot inquire into disability, family medical history, or require unnecessary testing.

Federal law also prohibits using medical exam results to discriminate against individuals with disabilities or to withdraw a job offer based on disability. Employers must follow the reasonable accommodation process if an applicant with a disability discloses information during the exam. The ADA applies to private employers, state and local governments, and employment agencies.

Illinois imposes requirements that meet and in some areas exceed the federal ADA baseline. The Illinois Human Rights Act (IHRA), 775 ILCS 5/1 et seq., applies to employers with one or more employees—significantly lower than the ADA's 15-employee threshold. This means Illinois law protects workers at smaller employers not covered by federal law.

Under the IHRA § 2-103, employers are prohibited from making pre-employment inquiries about disability or medical history. Illinois law does not allow medical exams before a conditional job offer, consistent with the ADA. However, Illinois law's broader employer coverage means that sole proprietorships and very small businesses must still comply with medical exam restrictions.

Illinois adds a layer of protection not found in federal law: the Illinois Genetic Information Nondiscrimination Act (GINA), codified at 410 ILCS 513/1 et seq. This state law explicitly prohibits employers from requesting, requiring, or purchasing genetic information about an employee or job applicant, including family medical history. The law defines genetic information broadly to include genetic tests, family medical history, genetic counseling, and fetal monitoring. This is stricter than federal GINA, which covers only group health plans and health insurance.

Post-offer exams in Illinois must follow the same ADA requirements: job-relatedness, consistent application to all applicants in the same position, confidentiality, and separate storage from personnel files. Illinois courts have applied the IHRA to review whether exams were truly job-related or used as a pretext for discrimination. The Illinois Department of Financial and Professional Regulation oversees health professions, while the Illinois Department of Labor enforces wage and hour rules. For disability discrimination complaints, the Illinois Department of Human Rights (IDHR) enforces the IHRA alongside the EEOC under a work-sharing agreement.

Illinois law provides few exceptions to pre-employment medical exam restrictions, but important nuances exist. The IHRA § 2-103 allows employers to conduct certain pre-employment inquiries that do not constitute medical exams, such as asking about the ability to perform essential job functions without accommodation. This is not a medical exam; it is a functional capacity question that must be phrased carefully to avoid triggering ADA protections.

One significant exception applies to jobs where medical condition is a bona fide occupational qualification (BFOQ). For example, an employer hiring commercial drivers may require medical exams before a conditional offer if federal DOT regulations mandate them. Similarly, positions requiring specific health certifications (medical professionals, pilots) may have different rules, though the exam timing restrictions still generally apply. However, the burden of proving BFOQ is extremely high, and Illinois courts construe it narrowly.

Another exception involves job-related physical demands assessments conducted before a conditional offer, provided they do not constitute medical exams. An employer may ask applicants to perform a work simulation (lifting weight, climbing stairs, typing speed) to demonstrate essential job function capability, provided all applicants in the same job class perform the same assessment. This is not a medical exam under the ADA but must not be designed to screen out individuals with disabilities.

Union employees and those covered by collective bargaining agreements are still protected by these rules; a union cannot waive IHRA or ADA protections through negotiation. Independent contractors and volunteers are generally not covered by employment law protections, though classification disputes are common and disfavor that designation.

Employers may conduct background checks, reference checks, and criminal history inquiries before a conditional offer without triggering medical exam restrictions. However, if a background check reveals medical information (e.g., workers' compensation claims), the employer must handle it carefully to avoid treating it as a disability-related inquiry.

Step 1 — Document Everything During the Hiring Process. Keep a record of all communications with the employer regarding the job application, including emails, phone calls, job postings, and any forms you were asked to complete. If the employer asked pre-offer medical questions, requested medical records, or required a physical exam before extending a job offer, document the date and substance of the request. Take screenshots of online application forms that ask about health conditions, medications, or disability. Note the names and titles of anyone who conducted the exam or made the inquiry, and request copies of any medical documents the employer has about you.

Step 2 — File an Internal Complaint if Feasible. If your employer has an HR department or grievance procedure, submit a written complaint describing the violation and requesting that the medical exam policy be corrected. Include the date of the improper exam or inquiry, the name of the person who conducted it, and how it violated your rights under the ADA and Illinois Human Rights Act. Request that any medical records obtained in violation of law be destroyed and that your application be reconsidered if you were rejected based on medical grounds. Keep a copy of your complaint and any response from HR. This step may prompt the employer to correct the practice, though it is not required before filing with an agency.

Step 3 — File a Charge with the EEOC and Illinois Department of Human Rights. You must file a charge with both agencies because Illinois and the EEOC have a dual-filing agreement. You can file with the Illinois Department of Human Rights (IDHR) at www.cyberdriveillinois.com/departments/index/dhr or call 217-785-5100 (Springfield office) or 312-814-6200 (Chicago office). Submit Form #441, the Civil Rights Complaint Form, which is available on the IDHR website. Alternatively, file with the EEOC Chicago District Office at www.eeoc.gov, call 1-800-669-4000, or visit 500 W. Madison St., Suite 2800, Chicago, IL 60661. You must file within 300 days of the violation (when the improper exam was requested or conducted). Provide the employer's name, address, date of the violation, and a detailed description of what happened. Explain that the employer required a medical exam before a conditional job offer was made, or that the post-offer exam violated the job-relatedness or consistent application requirement.

Step 4 — Understand the Investigation Process. After you file, the IDHR and EEOC will notify the employer and request a response. The agency will investigate by reviewing medical exam policies, job descriptions, the applicant tracking system showing which candidates received exams, and communications between HR and hiring managers. This process typically takes 90-180 days, though it can extend longer if the case is complex. You may be asked to provide additional information or clarification about your application and the exam. The employer will be asked to explain the business justification for the exam and whether it was truly job-related and required before or after the offer. The agency investigator will interview HR staff and hiring managers. You have the right to request a right-to-sue letter if the agency takes longer than 180 days or if you want to proceed with a private lawsuit.

Step 5 — Consult an Employment Attorney. Contact an employment law attorney licensed in Illinois before accepting any settlement offer from the employer or the agency. Medical exam violations can result in liability under both the ADA and IHRA. An attorney can evaluate whether you have been damaged by the violation (e.g., denied a job offer, offered lower pay, or forced to disclose a disability). Illinois allows recovery of back pay, front pay, compensatory damages for emotional distress, punitive damages if the violation was intentional, and attorney fees. An attorney can also determine whether the violation is part of a pattern affecting multiple applicants, which may strengthen your claim. Many employment attorneys in Illinois work on contingency, meaning they take a percentage of any recovery, so you do not pay upfront. Search for attorneys through the Illinois State Bar Association (www.isba.org) or local legal aid societies if you cannot afford an attorney.