Do I need a Phase 1 environmental study to sell commercial land?
No. The federal All Appropriate Inquiries rule does not make a Phase I environmental site assessment a condition of selling land. It sets the inquiry a purchaser makes to claim CERCLA landowner liability protections, and banks are expected to keep their own environmental review programs, so the report is usually the buyer's or the lender's. Virginia's own environmental programs are a separate question for the Department of Environmental Quality.
The inquiry rule is written for the party taking title
A Phase I study is the usual name for the environmental inquiry a commercial land deal runs into, and the federal rule behind it is aimed at the buyer's side of the table. No federal source read for this answer makes one a condition of a seller closing a sale.
EPA's All Appropriate Inquiries rule, codified at 40 CFR Part 312, sets the inquiry that has to be made by a party who later wants to claim one of CERCLA's landowner liability protections. Under 40 CFR 312.1 those are the innocent landowner defense, the bona fide prospective purchaser liability protection and the contiguous property owner liability protection, plus site assessments done with certain federal brownfields grants.
EPA names the people the requirements reach:
Commercial and government entities purchasing property, and all individuals purchasing property for non-residential use, who may, after purchasing a property, seek protection from CERCLA liability for releases or threatened releases of hazardous substances.
U.S. Environmental Protection Agency, Brownfields All Appropriate Inquiries
Apart from the brownfields grant recipients EPA also names, every party it lists is purchasing. EPA adds that a bona fide prospective purchaser may buy property with knowledge of contamination if the purchase came after January 11, 2002 and the statutory criteria are met. And when EPA recognized ASTM E1527-21, the current Phase I standard, in a 2022 rule, that rule said plainly: "This rule does not require any entity to use this standard."
Strict liability explains why buyers and lenders ask for one
If the rule is written for purchasers, a seller still hears about it, first because the liability it protects against can attach through ownership alone.
EPA explains that under CERCLA, persons may be held strictly liable for cleaning up hazardous substances at property they currently own or operate, or owned or operated in the past, and that strict liability means responsibility can be assigned based solely on property ownership. A buyer about to become the owner has a reason to document the site first. What that liability means for a seller personally is a question for an environmental attorney.
The lender has its own reason. The Office of the Comptroller of the Currency tells national banks that environmental contamination can hurt the value of real estate collateral and create potential liability for the bank, so a bank's policy should establish a program for assessing it. The same handbook notes that the AAI rule sets due diligence standards that can let an owner qualify for defenses under CERCLA and some state laws, and that states have their own environmental laws. What a particular lender requires is the lender's call.
Both reasons show up in the contract as time. Where the contract gives the buyer a due diligence period, the environmental work has to fit inside it, and a contingency is the contract term that can let the buyer withdraw if the report turns up a problem. How long that window runs and how it gets negotiated is set out in how long a due diligence period is. Contamination can also move the lender's appraisal, and a shortfall against the contract price is an appraisal gap. On an income property the same lender reads the environmental file alongside the income analysis described in what a cap rate is.
On a fuel site the underground storage tank record is part of what a buyer's environmental review reaches, and the rules a tank owner and operator work under are laid out in selling a gas station or convenience corner.
One year, 180 days, and the ASTM editions the rule recognizes
Timing is where the rule touches a seller most directly, because it decides whether a report done early is still usable at closing.
Under 40 CFR 312.20, all appropriate inquiries must be conducted within one year before the date the property is acquired. Several components have a shorter clock: interviews with past and present owners, operators and occupants, searches for recorded environmental cleanup liens, reviews of government records, visual inspections of the property and adjoining properties, and the environmental professional's declaration all have to be conducted or updated within 180 days before acquisition. A report is not simply good for a year.
The person signing has to qualify. Under 40 CFR 312.10 an environmental professional has the education, training and experience to form opinions about conditions indicating releases, and meets one of the listed paths, such as a current professional engineer or professional geologist license with the equivalent of three years of full-time relevant experience, or the equivalent of ten years of full-time relevant experience.
| Standard | What it covers | Status |
|---|---|---|
| ASTM E1527-21 | Phase I Environmental Site Assessment Process | Recognized; EPA's rule took effect February 13, 2023 |
| ASTM E2247-23 | Phase I process for forestland or rural property | Recognized |
| ASTM E1527-13 | Earlier Phase I edition | Recognized only until February 13, 2024 |
| ASTM E2247-16 | Earlier forestland and rural edition | Recognized only until June 24, 2025 |
Access, records and contract terms, rather than the report
The inquiry is usually the buyer's, but the seller is part of it. The rule's own components show where: interviews with past and present owners, a visual inspection of the property, and a search of the records.
- Access. Visual inspections of the property and of adjoining properties have to be conducted or updated within the 180-day window, so access to the site is something the contract addresses.
- Knowledge. As a present or past owner, the seller is one of the people the interviews reach. What the owner knows about the site's past uses is what those questions reach for.
- Disclosure. What a land seller is required to tell a buyer is a separate duty from the buyer's inquiry, covered in do I have to disclose problems with land I sell.
- Contract form. Selling on an as is basis changes some things about a sale and not others; that is the subject of what as is means on land.
The practical effect for an owner is that environmental questions arrive with the buyer, on the buyer's schedule. What a commercial listing documents for a buyer up front is covered on selling commercial property.
The environmental due diligence a buyer will run on your commercial land
Tell Lowell about the parcel and what it has been used for, and he will walk through what a buyer's environmental inquiry covers, so the questions do not arrive mid-contract. No cost, no obligation.
Got it. Thank you.
We'll be in touch shortly with an honest read.
Questions this raises
Does a clean Phase I protect a buyer from all cleanup liability?
No report does that by itself. All appropriate inquiries is one requirement tied to CERCLA's landowner protections, not the whole test. EPA describes bona fide prospective purchasers, for example, as able to buy with knowledge of contamination provided they bought after January 11, 2002 and meet the statutory criteria. Whether a particular buyer qualifies for a protection is a question for an environmental attorney.
Can a Phase I done two years ago be used for a sale closing now?
Not as it stands for all appropriate inquiries. Under 40 CFR 312.20 the inquiries must be conducted within one year before acquisition, and the interviews, lien searches, records reviews, visual inspections and the environmental professional's declaration must be conducted or updated within 180 days before acquisition. Whether an older report can be updated is an environmental professional's call.
Who is qualified to sign a Phase I environmental site assessment?
An environmental professional as 40 CFR 312.10 defines one: a person with the education, training and experience to form opinions about conditions indicating releases, who meets a listed path such as a current professional engineer or professional geologist license with three years of full-time relevant experience, or ten years of full-time relevant experience.
Where this page's facts come from
Every rule, office and figure above traces to one of these. Rules change; check the office before you act on one.
- Brownfields All Appropriate Inquiries: CERCLA liability, who AAI applies to, bona fide prospective purchasers, ASTM E2247-23 U.S. Environmental Protection Agency
- 40 CFR 312.1, purpose and applicability of All Appropriate Inquiries (40 CFR Part 312) Electronic Code of Federal Regulations
- 40 CFR 312.10, definition of environmental professional Electronic Code of Federal Regulations
- 40 CFR 312.11, references: ASTM E1527-21, E2247-23 and the retired editions Electronic Code of Federal Regulations
- 40 CFR 312.20, all appropriate inquiries: one year and 180 days before acquisition Electronic Code of Federal Regulations
- Standards and Practices for All Appropriate Inquiries, final rule recognizing ASTM E1527-21 (December 15, 2022) Federal Register
- Comptroller's Handbook: Commercial Real Estate Lending, Version 2.0, March 2022 (environmental risk) Office of the Comptroller of the Currency