Business ElementaryBusiness Elementary

    Environmental Hazards on the NJ Real Estate Exam

    The short answer: On the New Jersey salesperson exam, environmental questions sit mainly in Property Disclosures, which is 7% of the national portion. PSI's outline asks about "environmental issues requiring disclosure" and "federal, state, or local disclosure requirements regarding the property" (PSI candidate bulletin). The hazards that show up again and again are lead, radon, asbestos, mold and underground oil tanks. Learn the rule that attaches to each one—do not memorize a single "always disclose / always test" slogan for all five.

    This page is a study map. Use the deeper guides for lead-based paint disclosure, radon testing and disclosure, underground oil tanks, disclosures and transfer of title and federal laws.

    Where do environmental questions sit on the PSI outline?

    Outline homeWhat it lists
    VII. Property Disclosures, B (inside the 7% disclosures section)Environmental issues requiring disclosure; federal, state or local disclosure requirements
    VII. Property Disclosures, A and CSeller's property condition form; material facts and material defects

    Source: PSI candidate bulletin. PSI does not publish a separate percentage just for lead or radon. When a question names a hazard, ask: is there a federal form, a New Jersey statute, or only a general material-fact duty?

    What should you remember about lead?

    Lead is the most form-heavy hazard on the exam. For most housing built before 1978 ("target housing"), federal rules require a pamphlet, disclosure of known information and reports, and a 10-day opportunity for a buyer to test unless the parties change or waive that period in writing (40 CFR part 745, subpart F; 42 U.S.C. 4852d). Testing is not automatically required before a listing. Agent duties and record-keeping stay on the lead disclosure guide.

    If a question mentions a rental built before 1978, remember that New Jersey also has a separate municipal lead-safe inspection program under P.L.2021, c.182. Do not confuse "hand the federal pamphlet" with "the unit has a current lead-safe certificate."

    How is radon tested on the NJ side?

    New Jersey does not require a radon test before every sale. If the building has been tested, the seller must give the buyer the results—and evidence of any later mitigation—when the contract of sale is entered into (N.J.S.A. 26:2D-73; N.J.A.C. 7:28-27.3). A buyer who orders a test has a right to those results. Testing and mitigation must be done by state-certified companies; a homeowner may test their own home, but an agent should not run a client's test (NJDEP testing guidelines). Detail: radon disclosure in NJ.

    EPA recommends testing and talking about radon in real estate transactions, but the duty to hand over existing results is the New Jersey hook the exam likes (EPA radon and real estate).

    What about asbestos and mold?

    Asbestos is hazardous when damaged or disturbed (friable fibers can become airborne). EPA says there is no general federal rule requiring a home seller to disclose asbestos or vermiculite the way the lead rule requires lead disclosure; state or local law and known material facts still matter (EPA asbestos FAQ). "Same pamphlet and 10-day window as lead" is the trap.

    Mold. EPA's consumer guidance focuses on moisture control and cleanup. It does not set a federal "safe" numeric mold limit or a nationwide mold-disclosure form (EPA mold guide). On the exam, mold usually travels with property-condition and material-defect language: visible water damage is a red flag that may warrant inspection, not a separate federal pamphlet.

    Where do underground oil tanks show up?

    Buried heating-oil tanks are a New Jersey specialty. Residential tanks that store heating oil for on-site use are generally exempt from the main underground storage tank registration rules (N.J.A.C. 7:14B-1.4(b)3), but a discovered leak starts a different NJDEP response track. Do not invent a statewide "must remove before closing" rule—the details, including Spill Act themes, live on underground oil tanks in NJ home sales.

    Name recognition also helps: CERCLA (Superfund) is the federal cleanup statute that can attach liability for hazardous-substance releases (42 U.S.C. 9607). The federal-laws review is the place to restudy that label.

    How should you study these without mixing up the rules?

    HazardExam hookCommon trap
    LeadPre-1978 target housing; pamphlet, known info, 10-day buyer test windowThinking every seller must test before listing
    RadonNJ: deliver existing results and mitigation evidence at contract; certified testersThinking a test is mandatory in every sale
    AsbestosHazard when disturbed; no federal lead-style pamphlet ruleApplying the lead 10-day rule to asbestos
    MoldMoisture and material-condition red flags; no federal numeric standardInventing a federal mold disclosure form
    Oil tanksNJDEP/UST overlay; known tanks and leaks are materialA blanket "must remove to close" rule

    Work a few questions from each row, then open the matching guide only if you miss the distinction. Timing and scoring: PSI exam overview. Mixed practice: practice exams.

    Environmental and disclosure rules are part of NJ pre-licensing. Business Elementary's 75-hour pre-licensing course covers them with the rest of the outline.

    Sources

    Last reviewed: November 8, 2026

    Frequently Asked Questions

    View all New Jersey locations we serve