- Official section
- Illinois IV.E: Environmental and Other Disclosures
- Broker weight
- Part of 25% of the Illinois state portion
- Expected scored items
- The current PSI broker outline assigns 10 of 40 state items to Disclosures
Illinois disclosures decision guide
Illinois environmental disclosure framework
Environmental disclosure questions are won by routing, not by memorizing a single form. Name the hazard, decide whether the facts describe a sale or lease, classify the property, identify the person who must act, choose the right document package, and place delivery at the right point in the transaction.
Last updated: August 1, 2026
What does current Illinois authority require?
Short answer: Use five separate lanes. Illinois radon law requires its approved pamphlet and disclosure package for covered residential transfers, with distinct sale and tenant rules. Federal lead law generally governs pre-1978 target housing sales and leases. Mine subsidence law requires written disclosure of paid claims at the time of the transfer agreement. Underground fuel tanks appear on the Illinois seller report and may require separate regulatory records work. Illinois landlords must make signed, prelease flood disclosures under Section 25. The general seller report and the broker's own actual-knowledge duty remain separate layers.
The PSI Illinois broker outline effective June 24, 2026 names radon, lead-based paint, mine subsidence, underground storage tanks, and flooding for landlords. This guide compares their current routing rules through August 1, 2026. It is exam preparation, not environmental, engineering, insurance, or legal advice for a particular property.
Where is this tested on the Illinois outline?
- Topic
- First question: which hazard?
- What to know
- Radon, lead-based paint, mine subsidence, underground fuel tank, leaking tank, flooding, floodplain, environmental record, test report, insurance claim, and material physical fact
- Best exam move
- Name the hazard before choosing a form because each named outline topic follows a different statute or rule.
- Topic
- Second question: sale or lease?
- What to know
- Purchase, lease, renewal, option, transfer agreement, residential sale, target housing lease, radon tenancy, lower-level rental, transferee, lender, buyer, renter, and tenant
- Best exam move
- Do not carry a buyer-only inspection period into a lease or a landlord flood rule into an ordinary sale.
- Topic
- Third question: covered property?
- What to know
- One to four dwelling units, residential real property, dwelling unit, target housing, built before 1978, third story, mobile home, condominium, rental property, lower-level unit, commercial facility, regulated UST, and exemption
- Best exam move
- Test the property definition and statutory exclusions before assuming that the document applies.
- Topic
- Fourth question: who acts?
- What to know
- Seller, lessor, landlord, transferor, buyer, lessee, tenant, transferee, lender, real estate agent, sponsoring broker, owner, operator, OSFM, Illinois EPA, IEMA-OHS, and licensed professional
- Best exam move
- Assign the duty to the exact party named by the governing rule and keep the broker from becoming the environmental expert.
- Topic
- Fifth question: what must travel?
- What to know
- Pamphlet, statutory form, warning statement, known information, records and reports, paid insurance claims, seller-report checkbox, written flood statement, signed lease language, registration record, release file, and acknowledgment
- Best exam move
- Count every required component because a pamphlet, disclosure statement, records packet, and inspection opportunity are not interchangeable.
- Topic
- Sixth question: when?
- What to know
- Before buyer is obligated, before renter is obligated, before accepting offer, at application, before lease, at transfer agreement, before contract signing, in written agreement, in renewal lease, receipt, closing, and record retention
- Best exam move
- Put delivery into a transaction timeline instead of treating disclosure as a closing-table task.
- Topic
- Illinois radon sale lane
- What to know
- Residential real property, one to four units, IEMA pamphlet, Illinois Disclosure of Information on Radon Hazards, known elevated result, current records and reports, seller, purchaser acknowledgment, agent acknowledgment, before buyer obligated, post-offer preacceptance delivery, no testing mandate, and exclusions
- Best exam move
- For a covered sale, route the approved pamphlet and state form before obligation and attach any elevated-radon information in the seller's possession.
- Topic
- Illinois radon tenant lane
- What to know
- Prospective tenant, current tenant, application, before lease, request during tenancy, Radon Guide for Tenants, tenant form, hazard records, 90-day test period, 10-day delivery of result, lessor retest, 30 days, mitigation, 60-day election, and third-story exclusion
- Best exam move
- Recognize the current tenant framework enacted for leases beginning in 2024 and do not answer from the older repealed Section 25.
- Topic
- Federal lead lane
- What to know
- Target housing, pre-1978, sale, lease, EPA pamphlet, known lead-based paint, lead hazard, available records and reports, common areas, Lead Warning Statement, seller or lessor certification, agent certification, buyer acknowledgment, renter acknowledgment, 10-day opportunity, written waiver, changed period, and three-year retention
- Best exam move
- Use the construction year and transaction type, then assemble the complete federal information package before obligation.
- Topic
- Mine subsidence lane
- What to know
- Real property, transferor, transferee, lender, paid insurance claim, man-made underground mine, ground movement, structure damage, transfer agreement, written disclosure, written agreement, written waiver, actual damages, and five years
- Best exam move
- Focus on claims paid to the transferor, not merely a map showing that a mine may lie below the land.
- Topic
- Underground storage tank lane
- What to know
- Underground fuel storage tank, seller actual knowledge, Residential Real Property Disclosure Report item 21, heating oil, regulated substance, owner, operator, facility, registration, ownership change, 30 days, release, leaking UST database, No Further Remediation Letter, cleanup file, and environmental professional
- Best exam move
- Answer the home-sale disclosure question first, then recognize that a regulated or leaking tank calls for a separate agency-record and technical inquiry.
- Topic
- Landlord flooding lane
- What to know
- Every landlord, every tenant, before signing, FEMA Special Flood Hazard Area, actual knowledge, rental property, parking area, flooding frequency, lower-level unit, garden level, basement level, first floor, last 10 years, written lease, renewal lease, signatures, termination, damages, and exemptions
- Best exam move
- Separate the all-rentals disclosure in subsection (b) from the added 10-year history rule for lower-level units in subsection (c).
- Topic
- General seller-report layer
- What to know
- Flood hazard insurance, recurring leakage, floodplain, radon, asbestos, lead paint, lead pipes, lead soil, mine subsidence, earth stability, underground fuel tank, actual knowledge, explanation, supplement, inspection disclaimer, and material defect
- Best exam move
- Use the statutory report when it applies but never assume its environmental checkboxes replace a separate topic-specific package.
- Topic
- Licensee conduct layer
- What to know
- Actually known, latent, material adverse fact, physical condition, reasonably diligent inspection, timely disclosure, honesty, negligent false information, client instruction, confidentiality, documentation, referral, scope of expertise, and withdrawal
- Best exam move
- Disclose what the Act requires, do not conceal known material physical facts, and refer testing, interpretation, cleanup, and legal conclusions to qualified professionals.
Use H-T-P-D-T for every environmental disclosure question
- Hazard: Name the subject as radon, lead, mine subsidence, tank, or flood. The noun usually points to the governing statute.
- Transaction: Classify the event as a sale, lease, renewal, property transfer, or regulatory ownership change.
- Property and parties: Check the property definition and identify the seller, lessor, transferor, landlord, buyer, tenant, transferee, lender, and agent.
- Documents: Assemble the pamphlet, form, warning, known records, claim history, report answer, or signed lease disclosure required in that lane.
- Timing: Place delivery before obligation, at the transfer agreement, before lease signing, or within the regulatory reporting deadline stated by the applicable rule.
- Lane
- Illinois radon sale
- Core package
- IEMA-approved pamphlet, Illinois form, and known elevated-radon records
- Timing anchor
- Before buyer is obligated
- Lane
- Illinois radon tenancy
- Core package
- Tenant pamphlet, tenant form, and hazard records
- Timing anchor
- At application, before lease, or on request during tenancy
- Lane
- Federal lead
- Core package
- EPA pamphlet, warning, known information, records, and certifications
- Timing anchor
- Before buyer or renter is obligated
- Lane
- Mine subsidence
- Core package
- Paid claims disclosed in writing to transferee and lender
- Timing anchor
- At transfer agreement
- Lane
- Underground tank
- Core package
- Seller-report answer plus applicable registration, release, and cleanup records
- Timing anchor
- Before sales contract for report; other deadlines vary
- Lane
- Landlord flood
- Core package
- Flood-zone and history statement, including lower-level 10-year history
- Timing anchor
- Before signing and in signed lease or renewal
- Lane
- Seller report
- Core package
- Actual-knowledge environmental answers
- Timing anchor
- Buyer receives report before contract signing
- Lane
- Broker layer
- Core package
- Truthful process, known latent physical facts, records, and referrals
- Timing anchor
- Timely within the transaction
Which Illinois distinctions matter most?
- Terms
- Hazard notice vs. proof of contamination
- Difference
- A warning or disclosure can be required because a property falls within a statutory category. It does not necessarily prove that the hazard is present at an unsafe level.
- Question cue
- Information duty versus scientific conclusion.
- Terms
- General seller report vs. special disclosure package
- Difference
- The Illinois seller report gathers actual-knowledge answers across 23 condition categories. Radon and federal lead rules can require additional pamphlets, forms, records, and acknowledgments.
- Question cue
- Broad checklist versus hazard-specific compliance.
- Terms
- Radon notice vs. radon test
- Difference
- The sale disclosure requirement can apply without a test. The seller supplies the approved information and known records, while the buyer decides whether to arrange testing within the contract process.
- Question cue
- Required information versus optional measurement.
- Terms
- Lead disclosure vs. lead abatement
- Difference
- The federal transaction rule requires disclosure and an information process. It does not generally require the seller or lessor to remove lead-based paint before every covered transaction.
- Question cue
- Tell and document versus repair mandate.
- Terms
- Buyer lead opportunity vs. renter disclosure
- Difference
- A homebuyer ordinarily receives a 10-day opportunity for an inspection or risk assessment unless the period is changed or waived in writing. The disclosure rule does not give a renter that same mandatory 10-day opportunity.
- Question cue
- Sale investigation period versus lease information package.
- Terms
- Mine location vs. paid claim
- Difference
- A mine map concerns physical location. The Illinois Mine Subsidence Disclosure Act expressly asks about mine-subsidence insurance claims paid to the transferor for the property.
- Question cue
- Geologic possibility versus statutory disclosure event.
- Terms
- Underground tank vs. leaking underground tank
- Difference
- A tank can exist without a confirmed release. A leaking UST file concerns a reported release and corrective-action status, which creates a different due-diligence question.
- Question cue
- Equipment presence versus contamination record.
- Terms
- Residential heating-oil tank vs. regulated UST
- Difference
- The Illinois seller report can ask about an underground fuel tank even when a tank used exclusively for on-premises residential heating is excluded from the regulatory UST classification. Disclosure vocabulary and regulatory classification are not identical.
- Question cue
- Report the known feature, then classify regulation separately.
- Terms
- Floodplain status vs. known flooding history
- Difference
- FEMA Special Flood Hazard Area status is a mapped-risk issue. Actual prior flooding is an event-history issue. Section 25 makes both relevant and adds a specific 10-year inquiry for lower-level units.
- Question cue
- Mapped zone versus past occurrence.
- Terms
- Sale flood item vs. landlord flood disclosure
- Difference
- A covered seller answers flood-related questions on the residential report before a sales contract. A landlord follows Section 25 before a lease or renewal and includes a signed disclosure in that agreement.
- Question cue
- Seller form versus tenant notice.
- Terms
- Owner statement vs. broker statement
- Difference
- The owner or other statutory party supplies the required factual disclosure. The broker explains the transaction process and follows license-law duties without inventing answers or certifying environmental safety.
- Question cue
- Responsible discloser versus licensed facilitator.
- Terms
- Known fact vs. professional diagnosis
- Difference
- A broker may know that a report found elevated radon or that a tank release was reported. Determining health risk, cleanup scope, engineering adequacy, or legal liability belongs to the relevant qualified professional.
- Question cue
- Communicate the record, do not exceed competence.
How does the Illinois rule apply?
A 1962 house has no known lead report
Scenario: A seller says there has never been a lead inspection, so the seller believes there is nothing to disclose.
- The age of target housing activates the federal disclosure process even when the seller has no lead report.
- The seller states actual knowledge, provides available records if any, delivers the EPA pamphlet and warning language, and gives the buyer the inspection opportunity.
Answer: Use the federal pre-1978 package and document that the seller has no known information or available records, if accurate.
The radon form arrives after the offer
Scenario: A buyer submits an offer on a covered Illinois home before receiving the radon pamphlet and form. The seller has not accepted.
- Illinois law directs the seller to complete the radon disclosure activities before accepting the offer.
- The buyer gets an opportunity to review the information and possibly amend the offer, so waiting for closing would miss the sequence.
Answer: Deliver and review the radon materials before acceptance.
A mine map shows old workings but no paid claim
Scenario: The property lies above a mapped mine, but the transferor has never received a mine-subsidence insurance payment.
- The mapped location may matter to risk, insurance, investigation, and the general seller report.
- The specific Mine Subsidence Disclosure Act question focuses on insurance claims paid to the transferor, so mine location alone is not a paid-claim fact.
Answer: Keep map risk and paid-claim disclosure distinct while answering any other applicable report questions truthfully.
A residence has an old buried heating-oil tank
Scenario: The seller knows a buried tank once supplied the furnace and assumes no disclosure is needed because residential heating-oil tanks can fall outside the UST regulatory definition.
- The statutory residential seller report separately asks whether the seller is aware of underground fuel storage tanks.
- A regulatory exclusion does not turn a known tank into a no answer, and the buyer may need a separate technical or records review.
Answer: Disclose the known tank on the applicable seller report and refer technical and regulatory questions to qualified professionals.
A first-floor rental flooded twice
Scenario: A landlord plans to renew a first-floor apartment lease. The property is outside the mapped 100-year floodplain but flooded twice from rainfall in the past 10 years.
- First floor is a lower-level unit under Section 25, and floodplain status is separate from event history.
- The landlord must disclose before signing, state the known frequency, include the statement in the renewal, and obtain both signatures.
Answer: Disclose the two flooding events even though the property is outside the mapped Special Flood Hazard Area.
One transaction needs several packages
Scenario: A 1972 Illinois house has an elevated radon report, a buried fuel tank, and a prior mine-subsidence claim.
- The covered seller report addresses known environmental conditions, while Illinois radon and federal lead laws add their own packages.
- The Mine Subsidence Disclosure Act addresses the paid claim, and the tank fact calls for truthful reporting plus appropriate records or technical inquiry.
Answer: Stack the applicable disclosures; do not choose one form and discard the rest.
Where do candidates misread the Illinois rule?
- Trap
- Environmental disclosure means one universal Illinois form.
- Correction
- Route each named hazard to its governing state or federal source.
- Trap
- A no answer on the general seller report replaces radon or lead paperwork.
- Correction
- The general report and a hazard-specific package can both apply.
- Trap
- Every Illinois seller must test for radon before sale.
- Correction
- The sale rule requires information and known records but does not itself create a universal testing duty.
- Trap
- A renter gets the federal buyer's 10-day lead inspection opportunity.
- Correction
- The mandatory 10-day opportunity belongs to the buyer side of the rule, not the ordinary lease disclosure process.
- Trap
- Lead disclosure applies only when the owner already knows lead paint exists.
- Correction
- Covered pre-1978 target housing triggers the disclosure process even when the owner reports no known information.
- Trap
- A mine map proves a paid mine-subsidence claim.
- Correction
- Mine location and a claim paid to the transferor are different facts.
- Trap
- Mine-subsidence disclosure goes only to the buyer.
- Correction
- The Act names both the transferee and lender.
- Trap
- A residential UST regulatory exclusion justifies a no answer about a known buried fuel tank.
- Correction
- The seller report asks about the known tank feature separately from regulatory classification.
- Trap
- Tank registration proves that no release occurred or that cleanup is complete.
- Correction
- Registration, release reporting, corrective action, and closure status are distinct records.
- Trap
- FEMA flood-zone status and actual flooding history are the same fact.
- Correction
- Section 25 makes mapped risk and event history separate disclosure subjects.
- Trap
- A first-floor apartment is not a lower-level unit.
- Correction
- The statutory definition includes garden, basement, and first-floor units.
- Trap
- A separate flood email is enough for an Illinois rental.
- Correction
- The disclosure must also appear in the written lease or renewal and be signed by both parties.
- Trap
- Environmental paperwork can wait until closing.
- Correction
- Several packages must arrive before contract or lease obligation.
- Trap
- The broker may invent an owner answer or guarantee environmental safety.
- Correction
- The broker facilitates truthful disclosure and refers scientific or legal conclusions to qualified professionals.
- Trap
- Only one level of law can apply to a transaction.
- Correction
- Federal, state, local, contractual, and professional duties can coexist.
Can you apply the rule to a fresh scenario?
These questions are original study items aligned to the published outline. They are not copied, recalled, or predicted PSI questions.
1. An Illinois broker lists a covered 1955 single-family home. The seller has no lead records and no knowledge of lead paint. Which action best fits the federal disclosure rule?
- Skip lead disclosure because the seller has no actual knowledge
- Deliver the EPA pamphlet and warning package, state the seller's knowledge and records accurately, and provide the buyer's inspection opportunity
- Require the seller to abate all painted surfaces before marketing
- Use only the Illinois Residential Real Property Disclosure Report
Show answer and explanation
Answer: B
The pre-1978 target-housing trigger starts the information process. A lack of known information is an answer within that process, not an exemption from it. The Illinois report does not replace the federal package.
2. At the time a written agreement transfers Illinois real property, the seller has received one mine-subsidence insurance payment for that property. What does the Mine Subsidence Disclosure Act require?
- Oral notice to the buyer after closing
- Written disclosure of the paid claim to the transferee and lender as part of the written agreement
- A new mine survey paid for by the seller
- Disclosure only if the property is residential
Show answer and explanation
Answer: B
The statute covers real property transfers, identifies both the transferee and lender as recipients, and makes the disclosure part of a written transfer agreement.
3. A landlord renews the lease for a garden-level unit that flooded three times in the last 10 years. The building is not in a FEMA Special Flood Hazard Area. Which statement is correct?
- No disclosure is needed because the building is outside the floodplain
- The landlord must disclose the known flooding and frequency before signing and include the signed disclosure in the renewal
- Only a seller, not a landlord, has a flood disclosure duty
- The landlord may wait until the next flood occurs
Show answer and explanation
Answer: B
A garden-level unit is a lower-level unit. Its 10-year history duty does not disappear because the mapped flood-zone answer is negative.
4. A seller knows that a buried residential heating-oil tank remains on the property. Which is the best exam answer?
- Answer no on the Illinois seller report because residential heating oil is always outside every law
- Disclose the known underground fuel tank on the applicable seller report and investigate separate regulatory or release questions as needed
- Guarantee that the soil is uncontaminated if the furnace no longer uses the tank
- Remove the tank secretly before the buyer's inspection
Show answer and explanation
Answer: B
The disclosure-report question and UST regulatory classification are separate. The broker should communicate the known feature and route technical questions rather than guarantee an environmental conclusion.
5. A covered Illinois residential sale involves known elevated radon records. The seller has already completed the general property disclosure report. What else is most clearly required before the buyer is obligated?
- Nothing, because the general report is the only Illinois disclosure
- The IEMA-approved radon pamphlet, Illinois radon form, and the applicable records in the seller's possession
- A seller-paid mitigation system in every case
- Only an oral warning from the buyer's agent
Show answer and explanation
Answer: B
Radon has a dedicated Illinois disclosure lane. The general report and the hazard-specific materials stack when both apply, while the sale provision does not create a universal testing or mitigation mandate.
How should you review this Illinois topic?
- Session
- 1. Name the five lanes
- Focus
- Radon, lead-based paint, mine subsidence, underground storage tanks, and landlord flooding
- Proof you are ready
- Write each governing source beside the correct hazard without notes.
- Session
- 2. Classify transactions
- Focus
- Sale, lease, renewal, transfer agreement, and regulatory ownership change
- Proof you are ready
- Classify 20 short scenarios before selecting any document.
- Session
- 3. Apply H-T-P-D-T
- Focus
- Hazard, transaction, property and parties, documents, and timing
- Proof you are ready
- Rebuild the framework from memory and use it on 10 mixed questions.
- Session
- 4. Memorize timing anchors
- Focus
- Before obligation, at transfer agreement, before lease signing, and 30 days after a regulated UST ownership change
- Proof you are ready
- Put 20 document events in the correct transaction order.
- Session
- 5. Stack the layers
- Focus
- General seller report, special package, broker duty, contract, and professional inquiry
- Proof you are ready
- List every applicable layer for five properties with multiple hazards.
- Session
- 6. Defend the answer
- Focus
- Property trigger, responsible party, required record, and exact deadline
- Proof you are ready
- Score at least 90% on a fresh set and explain why every distractor is in the wrong lane.
Do not count recognition as mastery. Close the notes and explain the rule, apply it to a new fact pattern, and identify why each distractor fails.
Practice the Illinois rule in context
From concept to decision
Drill this topic, then review the explanation
Pass Illinois gives you original national and Illinois questions, topic-by-topic study, clear explanations, timed practice, flashcards, progress tracking, and Math Coach. Start free, find the weak distinction, and focus the next session there.
Questions students ask about Illinois Environmental Disclosure Framework
What environmental disclosures are on the Illinois broker exam?
The Illinois state outline effective June 24, 2026 expressly names radon, lead-based paint, mine subsidence, underground storage tanks, and flooding for landlords. It places them within Disclosures, which accounts for 10 of the 40 scored state items on the broker examination.
Is there one Illinois environmental disclosure form?
No. Start with the hazard, transaction, property type, and recipient. Illinois radon law, federal lead law, the Mine Subsidence Disclosure Act, the Residential Real Property Disclosure Act, and the Landlord and Tenant Act impose different documents, knowledge standards, and delivery times.
Does the Illinois seller disclosure report replace a radon form?
No. The seller report asks whether the seller is aware of unsafe radon concentrations, but a covered residential sale also requires the Illinois radon pamphlet and statutory radon disclosure before the buyer is obligated. One disclosure does not substitute for the other.
What is the basic lead-based paint disclosure trigger?
Federal law generally applies to a sale or lease of target housing built before 1978, subject to defined exemptions. Before the buyer or renter is obligated, the seller or lessor provides the EPA pamphlet, known information and available records, a lead warning statement, and the required certifications. A homebuyer also receives a 10-day inspection opportunity unless changed or waived in writing.
What must be disclosed under the Illinois Mine Subsidence Disclosure Act?
At the time an agreement to transfer real property is made, the transferor must disclose in writing to the transferee and lender all mine-subsidence insurance claims paid to the transferor on that property. If the transfer agreement is written, the disclosure is part of the agreement.
How are underground fuel tanks disclosed in an Illinois home sale?
The statutory Illinois Residential Real Property Disclosure Report asks whether the seller is aware of underground fuel storage tanks on the property. A commercial or regulated tank can also bring OSFM registration, ownership-change, release, and Illinois EPA cleanup questions, so a yes answer is a cue for records and professional due diligence rather than a promise that one checkbox resolves the issue.
When must an Illinois landlord disclose flooding?
Before lease signing, every landlord must make the written disclosures required by Section 25 of the Landlord and Tenant Act about a FEMA Special Flood Hazard Area and known flooding of the rental property or parking areas. A landlord leasing a lower-level unit has an additional 10-year flooding-history duty. The disclosure must also appear in the written lease or renewal and be signed by both parties.
Does environmental disclosure require the owner to test every property?
Not as a universal rule. The Illinois seller report uses actual knowledge without requiring a special investigation, the radon sale rule does not itself require the seller to test or mitigate, and the federal lead rule requires disclosure of known information and available records rather than a seller-paid inspection. A specific statute, contract, local rule, or professional assignment may create other obligations.
What should a broker do with a known environmental fact?
Identify the governing disclosure package, tell the responsible party about the applicable duty, deliver or document the required materials within the correct sequence, and follow the broker's separate duty concerning actually known latent material adverse physical facts. The broker should not diagnose contamination or guarantee that a property is safe.
Are these official PSI Illinois broker exam questions?
No. They are original practice questions aligned to the Illinois broker outline effective June 24, 2026. The governing primary sources were reviewed through August 1, 2026.
Primary sources
- PSI Illinois Candidate Information Bulletin and outline effective June 24, 2026
- 765 ILCS 77, Illinois Residential Real Property Disclosure Act
- 765 ILCS 77/35, current Residential Real Property Disclosure Report
- 420 ILCS 46, current Illinois Radon Awareness Act
- IEMA-OHS radon and real estate forms and guidance
- US EPA real estate disclosures about potential lead hazards
- 40 CFR Part 745 Subpart F, federal lead disclosure rule
- 765 ILCS 95, Mine Subsidence Disclosure Act
- 765 ILCS 705/25, current landlord flood disclosure
- 41 Illinois Administrative Code Part 176, UST notification rules
- Illinois EPA guidance for buyers of property with a reported UST release
- 225 ILCS 454/15-25, licensee duties to customers
The current official outline controls the tested scope. Statutes, regulations, and official agency materials control when a general study rule and a jurisdiction-specific rule differ.
Editorial status
Checked against primary sources
The Pass Illinois editorial team last checked this guide on August 1, 2026. Every practice question is an original study item, and the source links above let you verify the rules that support the lesson.