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Illinois practice guide

Route the hazard before you choose the paperwork

A 1960 house can need lead disclosures without a positive test. A mine map is not a paid claim. A buried heating-oil tank can appear on the seller report despite a regulatory exclusion. Give each hazard its lane, then stack those that apply.

Last updated: August 1, 2026

What skill does this practice set measure?

Short answer: Use separate routes. Illinois radon law controls its pamphlets, forms, records, and transaction timing. Federal lead law covers pre-1978 target housing and gives buyers a 10-day opportunity unless changed or waived in writing. Mine-subsidence law focuses on paid claims disclosed to the transferee and lender. Known underground fuel tanks go on the seller report, with regulatory records handled separately. Illinois landlords give signed flood disclosures, including a 10-year lower-level history. The general report and broker duty remain layers.

Official section
Illinois IV.E: Environmental and Other Disclosures
Broker weight
Part of the 25% Illinois Disclosures area
Expected scored items
The current PSI broker outline assigns 10 of 40 state questions to Disclosures

The June 24, 2026 outline names radon, lead paint, mine subsidence, underground tanks, and landlord flooding. This page uses primary sources checked through August 1, 2026. It is exam preparation, not property-specific environmental, engineering, insurance, regulatory, contract, or legal advice.

Ready to work the set?

These questions are original study items aligned to the published outline. They are not copied, recalled, or predicted PSI questions.

1. A covered 1955 home has no lead reports and the seller knows of no lead paint. What best satisfies the federal transaction rule?

  1. Provide the EPA package, state the seller's knowledge and records accurately, and give the buyer's inspection opportunity
  2. Skip disclosure because no positive test exists
  3. Require full abatement before the property is shown
  4. Use only the Illinois residential seller report
Show answer and explanation

Answer: Provide the EPA package, state the seller's knowledge and records accurately, and give the buyer's inspection opportunity

Pre-1978 target housing triggers the federal information process. No known lead is a response within that process rather than an exemption.

2. The transferor received a mine-subsidence insurance payment for the property. What does Illinois law require when a written transfer agreement is made?

  1. Written disclosure of the paid claim to the transferee and lender as part of the agreement
  2. Oral notice to the buyer after closing
  3. A seller-paid mine survey in every case
  4. Disclosure only when the property has four units or fewer
Show answer and explanation

Answer: Written disclosure of the paid claim to the transferee and lender as part of the agreement

The Mine Subsidence Disclosure Act focuses on paid claims, names both recipients, and places the disclosure at the transfer agreement.

3. A garden-level rental flooded three times in the last 10 years but is outside a FEMA Special Flood Hazard Area. What is the best answer?

  1. Disclose the history and known frequency before signing and include the signed statement in the lease or renewal
  2. Make no disclosure because the map controls every flood question
  3. Wait until the tenant experiences a flood
  4. Use the federal buyer lead form instead
Show answer and explanation

Answer: Disclose the history and known frequency before signing and include the signed statement in the lease or renewal

Garden level is a lower-level unit, and the 10-year event-history duty is separate from mapped flood-zone status.

4. A seller knows an underground residential heating-oil tank remains on the property. Which exam answer is strongest?

  1. Disclose the known tank on the applicable seller report and investigate separate regulatory or release issues as needed
  2. Answer no because residential heating oil is outside every possible rule
  3. Guarantee clean soil because the tank is unused
  4. Wait for the buyer to discover the tank
Show answer and explanation

Answer: Disclose the known tank on the applicable seller report and investigate separate regulatory or release issues as needed

The physical-feature disclosure and regulatory UST classification are separate. A known tank should not be converted into a no answer by an unrelated exclusion.

5. A covered Illinois home sale includes known elevated radon records, and the seller already completed the general property report. What additional package is most clearly required?

  1. The approved radon pamphlet, Illinois radon form, and applicable records before the buyer is obligated
  2. Nothing because the general report replaces every other form
  3. Only an oral warning after closing
  4. Mandatory seller-paid mitigation in every transaction
Show answer and explanation

Answer: The approved radon pamphlet, Illinois radon form, and applicable records before the buyer is obligated

Illinois radon law has a separate sale lane that stacks with the general seller report when both apply.

Which answer habits should you watch for?

Trap
Illinois uses one environmental disclosure form for every hazard.
Correction
Each named hazard has its own federal or state route, and several routes may apply together.
Trap
Every Illinois seller must order a radon test before sale.
Correction
The sale provision requires information and known records but does not itself impose universal testing or mitigation.
Trap
Federal lead disclosure applies only after a positive test.
Correction
Covered pre-1978 target housing triggers the disclosure process even when the owner has no known lead information.
Trap
Every renter receives the buyer's 10-day lead inspection opportunity.
Correction
The ordinary mandatory 10-day opportunity belongs to the buyer side, not the lease disclosure package.
Trap
A mine map proves a paid mine-subsidence insurance claim.
Correction
Mine location and a claim paid to the transferor are distinct facts.
Trap
Mine-claim disclosure is delivered only to the buyer.
Correction
The Act names the transferee and lender as recipients.
Trap
A residential tank exclusion allows a no answer about a known buried tank.
Correction
The seller-report question concerns the known physical feature, not only regulatory classification.
Trap
Tank registration proves no release occurred.
Correction
Registration, release reporting, corrective action, and closure status are different records.
Trap
Floodplain status and past flooding are the same fact.
Correction
One is mapped risk and the other is event history. Illinois landlord law can require both.
Trap
A first-floor apartment is not a lower-level unit.
Correction
The Section 25 definition includes garden, basement, and first-floor units.
Trap
A separate flood email always completes the landlord duty.
Correction
The disclosure also appears in the written lease or renewal and is signed by landlord and tenant.
Trap
A broker can certify that a disclosed property is environmentally safe.
Correction
The broker facilitates truthful disclosure and refers scientific, regulatory, cleanup, and legal conclusions to qualified professionals.

How should you reason through a difficult item?

The 1962 home with no lead records

Scenario: A seller has never tested a 1962 single-family home and says there is nothing to disclose because no one has proved that lead-based paint exists.

  1. The construction date raises the federal target-housing disclosure process even without a positive test.
  2. The seller accurately states known information and supplies available records, if any.
  3. The package also includes the EPA pamphlet, warning and certifications, plus the buyer's inspection opportunity unless changed or waived in writing.

Answer: Complete the federal package before the buyer is obligated. No known lead information is a disclosure response, not an exemption.

The radon packet after the offer

Scenario: A buyer submits an offer on a covered Illinois home before receiving the radon pamphlet and disclosure. The seller has not accepted the offer yet.

  1. The Illinois sale process places the radon disclosure activity before the buyer becomes obligated.
  2. The seller can still deliver the materials before accepting the offer.
  3. The buyer then has an opportunity to review the information and address it within the transaction.

Answer: Deliver and review the radon materials before acceptance. Waiting until closing would miss the required sequence.

The mapped mine with no paid claim

Scenario: A property sits above mapped mine workings. The transferor has never received a mine-subsidence insurance payment for that property.

  1. The map can matter to general disclosure, insurance, physical investigation, and buyer decision-making.
  2. The Mine Subsidence Disclosure Act specifically focuses on claims paid to the transferor.
  3. A mapped mine does not prove that a claim was filed or paid.

Answer: Keep the mapped risk and the paid-claim disclosure event distinct while answering all other applicable questions truthfully.

The buried residential heating-oil tank

Scenario: A seller knows an unused buried tank once supplied the home furnace. The seller argues that a residential heating-oil regulatory exclusion means the residential disclosure form should say no.

  1. The statutory seller report asks whether the seller is aware of an underground fuel storage tank.
  2. The physical-feature question is separate from regulatory UST classification.
  3. A buyer may also need tank, release, closure, soil, and agency-record information from qualified sources.

Answer: Disclose the known tank on the applicable seller report and route regulatory or contamination questions separately.

The first-floor unit that flooded twice

Scenario: A landlord prepares a renewal for a first-floor apartment. The building is outside the FEMA Special Flood Hazard Area, but the unit flooded twice during heavy rain in the last 10 years.

  1. First floor falls within the lower-level-unit definition for this provision.
  2. Mapped flood-zone status and known flooding history are separate disclosures.
  3. The landlord provides the statement before signing, includes it in the renewal, and obtains both signatures.

Answer: Disclose the two events and their known frequency even though the mapped-zone answer is negative.

The house with four environmental lanes

Scenario: A 1972 Illinois house has a current elevated radon report, an old buried fuel tank, and a mine-subsidence insurance claim paid to the seller. The seller has also completed the general property report.

  1. The construction year raises the federal lead package, whether or not a lead test exists.
  2. Radon has its own Illinois disclosure materials and known records.
  3. The paid mine claim goes to the transferee and lender, while the tank requires the applicable seller-report answer and separate records inquiry.

Answer: Stack every applicable package. Completing the general seller report does not eliminate the special lead, radon, mine-claim, or tank analysis.

The ROUTE method for environmental questions

  1. Risk: Name radon, lead, mine subsidence, tank, flood, or another physical condition.
  2. Occasion: Identify the sale, lease, renewal, transfer agreement, request, or ownership change.
  3. Users and property: Apply the property definition and identify each responsible party and recipient.
  4. Things delivered: Assemble the pamphlet, form, warning, records, certifications, claim history, statement, or agency file.
  5. Exact time and extra layer: Place delivery correctly, then add the seller report, broker duty, contract, local law, and professional inquiry.
Lane
Illinois radon sale
Core package
Approved pamphlet, Illinois form, and known elevated-radon records
Timing anchor
Before buyer is obligated
Lane
Illinois radon tenancy
Core package
Tenant guide, 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 to transferee and lender
Timing anchor
At the 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 flooding
Core package
Flood-zone and event-history statement with lower-level 10-year history
Timing anchor
Before signing and in signed lease or renewal
Lane
Seller report
Core package
Actual-knowledge environmental answers and explanations
Timing anchor
Buyer receives before contract signing

Which outline areas does this set sample?

Topic
Naming the environmental lane
What to know
Radon, lead paint, mine subsidence, underground fuel tank, leaking UST, flooding, floodplain, test result, insurance claim, and material adverse fact
Best exam move
Start with the hazard noun because it usually identifies the governing source and prevents the one-form mistake.
Topic
Classifying the transaction
What to know
Sale, lease, renewal, application, transfer agreement, ownership change, target-housing lease, tenant request, buyer, renter, transferee, lender, and obligation
Best exam move
Do not move a buyer inspection opportunity into a lease or use a landlord flood rule to answer an ordinary sale question.
Topic
Classifying the property
What to know
One to four units, residential property, target housing, pre-1978, third story, mobile home, condominium, lower-level unit, garden, basement, first floor, regulated UST, and exemption
Best exam move
Apply the lane's property definition and exemptions before assembling forms.
Topic
Assigning the responsible party
What to know
Seller, lessor, landlord, transferor, owner, operator, buyer, tenant, transferee, lender, broker, OSFM, Illinois EPA, IEMA-OHS, consultant, and attorney
Best exam move
Give the statutory disclosure to the named party while keeping the broker within facilitation and license-law duties.
Topic
Assembling the documents
What to know
Pamphlet, form, warning, known information, records, test report, paid claim, seller-report answer, flood statement, signed lease, registration, release, cleanup, acknowledgment, and certification
Best exam move
Count every required component because a pamphlet, form, records packet, warning, and inspection opportunity do different work.
Topic
Placing the timing anchor
What to know
Before obligation, before offer acceptance, at application, before lease or renewal, at transfer agreement, before sales contract, effective receipt, 10 days, 30 days, closing, and retention
Best exam move
Put delivery and signature in transaction order. Environmental paperwork is often due before the closing table.
Topic
Applying Illinois radon sale rules
What to know
Residential property, one to four units, IEMA-OHS pamphlet, Illinois radon form, elevated result, known records, seller, buyer and agent acknowledgments, before obligation, offer, acceptance, testing, mitigation, and exclusions
Best exam move
For a covered sale, provide the approved information and known records before obligation rather than waiting for closing or requiring a seller-paid test in every case.
Topic
Applying Illinois radon tenant rules
What to know
Prospective or current tenant, application, lease, request, Radon Guide for Tenants, tenant form, hazard records, 90-day test period, 10-day result delivery, retest, 30 days, mitigation, 60-day election, and third-story exclusion
Best exam move
Use the tenant provisions for leases beginning in 2024 and do not answer from the older repealed tenant section.
Topic
Applying federal lead rules
What to know
Target housing, pre-1978, sale, lease, EPA pamphlet, known lead, available records, common areas, warning statement, seller or lessor certification, agent certification, acknowledgment, 10-day opportunity, waiver, changed period, and three-year retention
Best exam move
Construction year starts the analysis, and no known lead is an answer within the package rather than an automatic exemption.
Topic
Applying mine-subsidence rules
What to know
Real property, transferor, transferee, lender, paid insurance claim, underground mine, ground movement, damage, transfer agreement, written disclosure, waiver, actual damages, five years, and mine map
Best exam move
Focus the special Act on claims paid to the transferor while keeping mapping, insurance, and general seller-report questions separate.
Topic
Applying underground-tank rules
What to know
Underground fuel tank, seller awareness, item 21, heating oil, regulated substance, owner, operator, OSFM registration, ownership change, 30 days, release, LUST database, corrective action, NFR letter, closure, and consultant
Best exam move
Disclose the known physical feature first, then investigate whether registration, release, cleanup, or closure rules add another layer.
Topic
Applying landlord flood rules
What to know
Every landlord and tenant, before signing, FEMA Special Flood Hazard Area, actual knowledge, property, parking, frequency, lower-level unit, garden, basement, first floor, 10 years, lease, renewal, signatures, remedies, and exceptions
Best exam move
Analyze mapped flood status and event history separately, then add the 10-year lower-level history when the unit definition fits.
Topic
Stacking the seller-report layer
What to know
Flood insurance, leakage, floodplain, radon, asbestos, lead, mine subsidence, earth stability, underground tank, actual knowledge, yes, no, explanation, supplement, and material defect
Best exam move
Use the broad residential report when applicable without letting its answers replace a special radon, lead, mine, tank, or lease package.
Topic
Applying the broker conduct layer
What to know
Actually known, latent material adverse fact, physical condition, diligent inspection, timely disclosure, honesty, false information, client instruction, records, referral, expertise boundary, no diagnosis, no safety guarantee, sponsor, and withdrawal
Best exam move
Communicate known facts and required materials, but send scientific, cleanup, insurance, engineering, and legal judgments to qualified professionals.

What should you sort out before you begin?

Terms
Hazard notice vs. proof of contamination
Difference
A warning can be required because a property falls within a statutory category. It does not necessarily prove that an unsafe concentration or confirmed release exists.
Question cue
Information requirement versus scientific conclusion.
Terms
General seller report vs. special package
Difference
The Illinois report gathers actual-knowledge answers across many conditions. Radon and federal lead rules can add pamphlets, forms, records, warnings, and acknowledgments.
Question cue
Broad checklist versus hazard-specific compliance.
Terms
Radon disclosure vs. radon testing
Difference
Disclosure can apply without a new test. The seller provides required information and known records, while testing is addressed separately by law, contract, or buyer choice.
Question cue
Required information versus measurement.
Terms
Lead disclosure vs. lead abatement
Difference
The federal transaction rule requires information and documentation. It does not generally require every seller or lessor to remove lead-based paint before a covered transaction.
Question cue
Tell and document versus remediate.
Terms
Buyer lead opportunity vs. renter disclosure
Difference
A covered buyer ordinarily receives a 10-day inspection or risk-assessment opportunity unless changed or waived in writing. An ordinary renter does not receive that same mandatory buyer period.
Question cue
Sale investigation period versus lease information package.
Terms
Mine map vs. paid mine-subsidence claim
Difference
A mine map describes possible underground workings. The special disclosure statute asks about mine-subsidence insurance claims paid to the transferor for the property.
Question cue
Physical risk indicator versus statutory payment event.
Terms
Underground tank vs. leaking underground tank
Difference
A buried tank can exist without a confirmed release. A leaking UST file reflects a reported release and corrective-action history.
Question cue
Equipment presence versus contamination record.
Terms
Residential tank exclusion vs. seller-report answer
Difference
A residential heating-oil tank may be excluded from a regulatory UST definition while still being a known underground fuel tank on the residential seller report.
Question cue
Regulatory classification does not rewrite the form question.
Terms
Floodplain status vs. flooding history
Difference
FEMA Special Flood Hazard Area status is mapped risk. Actual prior flooding is event history. Illinois landlord law can require both categories.
Question cue
Map versus events.
Terms
Sale flood item vs. landlord flood statement
Difference
A covered seller answers the residential report before a sales contract. A landlord makes Section 25 disclosures before a lease or renewal and includes them in the signed agreement.
Question cue
Buyer form versus tenant notice.

How should you review your results?

Session
1. Name the five hazard lanes
Focus
Radon, lead paint, mine subsidence, underground tanks, landlord flooding, source, and vocabulary
Proof you are ready
Write each named outline hazard beside its federal or Illinois source and core disclosure trigger without notes.
Session
2. Sort the transaction and property
Focus
Sale, lease, renewal, transfer agreement, request, ownership change, one to four units, target housing, lower-level rental, and regulated facility
Proof you are ready
Classify twenty-five scenarios before selecting any form or deadline.
Session
3. Assemble each package
Focus
Pamphlet, form, warning, known information, records, certification, acknowledgment, paid claim, seller-report item, flood statement, lease, and agency file
Proof you are ready
Build a complete document checklist for two examples in every hazard lane.
Session
4. Memorize timing anchors
Focus
Before obligation, before acceptance, at application, before lease or renewal, at transfer agreement, before sales contract, 10 days, 30 days, and retention
Proof you are ready
Put thirty environmental events in correct transaction order and reject every closing-only shortcut.
Session
5. Stack without substituting
Focus
Seller report, radon, lead, mine claim, tank records, landlord statement, broker duty, contract, local rule, and professional inquiry
Proof you are ready
List every applicable layer for six properties that each present at least three hazards.
Session
6. Apply ROUTE
Focus
Risk, occasion, property, responsible party, recipient, documents, timing, broker boundary, and additional law
Proof you are ready
Score at least 90% on a fresh Illinois environmental set and explain which lane defeats every distractor.

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.

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Questions students ask about Illinois Environmental Disclosure Practice Questions: 2026

Which environmental disclosures are tested on the Illinois broker exam?

The outline effective June 24, 2026 names radon, lead-based paint, mine subsidence, underground storage tanks, and landlord flooding. They sit in Disclosures, which accounts for 10 of 40 scored state questions. The statutes supply the details and timing.

Is there one Illinois environmental disclosure form?

No. Radon, federal lead, mine subsidence, residential disclosure, UST, and landlord flood rules create different triggers and documents. Start with the hazard, transaction, property, responsible party, recipient, and timing. A universal-form answer is a trap.

Does the Illinois seller report replace the radon form?

No. The seller report asks about known unsafe radon concentrations. A covered residential sale separately requires the approved pamphlet and radon disclosure activity before the buyer is obligated. Known elevated-radon records also matter. One checkbox does not replace the package.

What triggers federal lead-based paint disclosure?

Federal law generally covers sales and leases of pre-1978 target housing, subject to exemptions. Before obligation, the seller or lessor provides the EPA pamphlet, known information, available records, warning language, and certifications. A buyer also gets a 10-day inspection opportunity unless changed or waived in writing.

What does Illinois mine-subsidence law require?

At the transfer agreement, the transferor discloses in writing to the transferee and lender all mine-subsidence insurance claims paid to the transferor for that property. If the agreement is written, the disclosure is part of it. A mine map is not a paid claim.

How is an underground fuel tank disclosed in an Illinois home sale?

The Illinois seller report asks whether the seller is aware of underground fuel storage tanks. A known residential heating-oil tank can require a yes answer even if it falls outside a regulatory UST definition. Registration, release, cleanup, and closure records are separate issues.

What flood disclosures must an Illinois landlord make?

Before lease or renewal signing, Section 25 requires written disclosure of FEMA Special Flood Hazard Area status and known property or parking flooding. Garden, basement, and first-floor units add a 10-year history. The statement appears in the lease or renewal and both parties sign it.

Must every Illinois owner test for environmental hazards?

No universal testing rule spans these topics. The seller report uses actual knowledge, radon sale law does not itself mandate testing or mitigation, and federal lead law centers on known information and records. A contract, local rule, or professional assignment may add testing.

What should an Illinois broker do with a known environmental fact?

Route it correctly, help the responsible party meet document and timing duties, preserve proof, and follow the broker's separate known-latent-fact duty. A broker can communicate reports and observations but should not diagnose contamination, certify safety, design cleanup, or give legal conclusions.

Are these official Illinois environmental-disclosure exam questions?

No. These are original scenarios aligned to the public outline effective June 24, 2026, not copied or recalled PSI items. The Illinois General Assembly, eCFR, EPA, IEMA-OHS, Illinois EPA, and cited primary sources were checked through August 1, 2026.

Primary sources

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