Hammond Power Solutions , Inc . v. National Union Fire Insurance Company of Pittsburgh , Pa

In the
United States Court of Appeals
For the Seventh Circuit
____________________
No. 24-1642
HAMMOND POWER S OLUTIONS , I NC .,
Plaintiff-Appellant,
v.
NATIONAL U NION F IRE I NSURANCE C OMPANY OF PITTSBURGH ,
PA, and I LLINOIS NATIONAL I NSURANCE C OMPANY ,
Defendants-Appellees.
____________________
Appeal from the United States District Court for the
Eastern District of Wisconsin.
No. 2:22-cv-00965-BHL — Brett H. Ludwig, Judge.
____________________
A RGUED A PRIL 10, 2025 — DECIDED J ULY 9, 2025
____________________
Before R IPPLE, HAMILTON , and PRYOR , Circuit Judges.
HAMILTON , Circuit Judge. Plaintiff Hammond Power
Solutions manufactures and distributes electric transformers.
From 2017 to 2022, Hammond Power purchased materially
identical commercial liability insurance policies from the
defendants, National Union Fire Insurance Company and
Illinois National Insurance Company (together, AIG). The
policies contained a coverage exclusion for claims for bodily

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2 No. 24-1642
injuries arising from “radioactive matter or any form of
radiation.”
In 2022, two people sued Hammond Power alleging harm
from electromagnetic field (EMF) radiation coming from
transformers near their apartment. The issue here is whether
AIG was obliged to defend and indemnify Hammond Power
in that lawsuit—which the parties agree involved “radiation”
in the form of EMF radiation. Applying Wisconsin law, we
agree with the district court that the coverage exclusion of
“any form of radiation” means “any form of radiation,” in-
cluding the EMF radiation alleged in the underlying lawsuit.
Accordingly, we affirm the district court’s grant of summary
judgment in favor of AIG.
I. Factual and Procedural Background
Hammond Power manufactures electric transformers and
distributes them worldwide. Transformers connect to high-
voltage transmission lines and reduce those high voltages to
levels suitable for household use, for example. Like any sys-
tem involving the movement of electricity, this process cre-
ates electromagnetic fields. The parties agree that electromag-
netic fields qualify as “radiation.”
During the relevant years of 2017 to 2022, Hammond
Power purchased commercial general liability insurance pol-
icies from the two defendant insurance companies, both sub-
sidiaries of American International Group, Inc. All the poli-
cies provided for indemnification and defense of Hammond
Power for claims for bodily injury, death, and property dam-
age, as well as other types of liability. However, the policies
also had the following exclusion that is the focus of this ap-
peal:

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No. 24-1642 3
RADIOACTIVE MATTER EXCLUSION
This endorsement modifies insurance provided under
the following:
COMMERCIAL GENERAL LIABILITY
COVERAGE FORM
Section I. – Coverages, Coverage A. – Bodily
Injury and Property Damage Liability, 2. – Ex-
clusions, is amended to add:
“Bodily injury” or “property damage” aris-
ing out of the actual, alleged or threatened
exposure of person(s) or property to any ra-
dioactive matter or any form of radiation.
Section I. – Coverages, Coverage B. – Personal
and Advertising Liability, 2. – Exclusions, is
amended to add:
“Personal and advertising injury” arising
out of the actual, alleged or threatened expo-
sure of person(s) or property to any radioac-
tive matter or any form of radiation.
In 2022, Dragan Micic and Lidija Bubanja filed a negli-
gence lawsuit in a New York state court seeking damages for
injuries allegedly caused by electric transformers manufac-
tured by Hammond Power. They alleged that the transform-
ers were installed adjacent to their bedroom and “emitted
dangerous levels of electromagnetic radiation.” More specifi-
cally, the Micic/Bubanja lawsuit alleged that electric trans-
formers manufactured and installed by Hammond Power ex-
posed Micic and Bubanja to “EMF radiation” that gave Micic
cancer. Hammond Power requested that AIG defend and in-
demnify it against the lawsuit. AIG denied coverage under

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4 No. 24-1642
the “Radioactive Matter Exclusion,” noting that the lawsuit
asserted claims within the exclusion for claims for harm aris-
ing out of exposure to “any form of radiation.” Hammond
Power asked AIG to reconsider the denial, and AIG again de-
nied coverage.
Hammond Power filed this suit in state court seeking a
declaration of coverage and alleging breaches of the duty to
defend and the implied covenant of good faith and fair deal-
ing. AIG removed the case to the Eastern District of Wiscon-
sin. Both parties later moved for summary judgment on the
question of coverage.
The district court granted summary judgment for AIG,
concluding: “No reasonable insured in Hammond’s position
would expect a policy that excludes coverage for bodily inju-
ries arising from exposure to ‘any form of radiation’ to pro-
vide coverage for bodily injuries arising from exposure to
EMF radiation, which Hammond admits is a form of radia-
tion.” Hammond Power Solutions, Inc. v. Nat’l Union Fire Ins. Co.,
722 F. Supp. 3d 885, 891 (E.D. Wis. 2024). Based on this con-
clusion, the court also granted summary judgment for AIG on
Hammond Power’s duty-to-defend and bad-faith claims. Id.
at 892–93. Hammond Power has appealed.
II. Analysis
We review de novo a district court’s decision on a motion
for summary judgment. Atain Specialty Ins. Co. v. Watson, 95
F.4th 541, 543 (7th Cir. 2024). Summary judgment is appropri-
ate when there are no genuine issues of material fact and the
moving party is entitled to judgment as a matter of law. Fed.
R. Civ. P. 56(a). When considering cross-motions for sum-
mary judgment, we construe “all facts and inferences arising

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No. 24-1642 5
from them in favor of the party against whom the motion un-
der consideration is made.” Blow v. Bijora, Inc., 855 F.3d 793,
797 (7th Cir. 2017). Because we are reviewing the district
court’s grant of summary judgment in AIG’s favor, we assess
evidence and any factual issues in the light reasonably most
favorable to Hammond Power.
Wisconsin law governs this suit under state law within our
diversity jurisdiction. Erie Railroad Co. v. Tompkins, 304 U.S. 64,
78 (1938). Under Wisconsin law, insurance agreements are in-
terpreted using ordinary principles of contract construction.
Folkman v. Quamme, 2003 WI 116, ¶12, 264 Wis. 2d 617, 630–
31, 665 N.W.2d 857, 864; Smith v. Atlantic Mut. Ins. Co., 155
Wis. 2d 808, 810, 456 N.W.2d 597, 598 (Wis. 1990). Wisconsin
courts assessing insurance coverage disputes conduct a three-
step analysis. They first ask whether “the insuring agreement
provides an initial grant of coverage…. Second, if the policy
initially grants coverage, the court then considers the exclu-
sions to determine whether any of them preclude coverage.
Finally, if an exclusion applies, the court determines whether
any exceptions to the exclusion reinstate coverage.” Fontana
Builders, Inc. v. Assurance Co. of America, 2016 WI 52, ¶50, 369
Wis. 2d 495, 522–23, 882 N.W.2d 398, 411 (citations omitted).
The policies issued to Hammond Power use broad language
granting coverage for the personal injury claims against Ham-
mond Power in the underlying lawsuit, so the question is
whether the radiation exclusion precludes coverage.
The Supreme Court of Wisconsin has explained that an in-
surance policy is “construed to give effect to the intent of the
parties as expressed in the language of the policy. Therefore,
the first issue in construing an insurance policy is to deter-
mine whether an ambiguity exists regarding the disputed

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6 No. 24-1642
coverage issue.” Folkman, 264 Wis. 2d 617, ¶¶12–13 (citation
omitted). Insurance policy language is ambiguous when it is
“susceptible to more than one reasonable interpretation.” Id.
¶13 (internal quotation marks omitted), quoting Danbeck v.
American Family Mut. Ins. Co., 2001 WI 91, ¶10, 245 Wis. 2d
186, 193, 629 N.W.2d 150, 154; see also Hirschhorn v. Auto-
Owners Ins. Co., 2012 WI 20, ¶23, 338 Wis. 2d 761, 772, 809
N.W.2d 529, 535. A “mere disagreement among or between
parties does not render policy language ambiguous.” Fontana
Builders, 369 Wis. 2d 495, ¶55. Ambiguity may be found based
on the context of the entire policy even when the language
itself is clear and unambiguous, Folkman, 264 Wis. 2d 617, ¶19,
but “any contextual ambiguity in an insurance policy must be
genuine and apparent on the face of the policy, if it is to upset
the intentions of an insurer embodied in otherwise clear lan-
guage.” Id. ¶29. Wisconsin courts interpreting texts focus
“primarily on the language” and assume that the drafter’s in-
tent is expressed in that language. State ex rel. Kalal v. Circuit
Court for Dane County, 2004 WI 58, ¶44, 271 Wis. 2d 633, 662,
681 N.W.2d 110, 124 (explaining statutory interpretation prin-
ciples).
A. The Exclusion’s Text
We begin with the policies’ language. We agree with the
district court that the exclusionary language here is unambig-
uous as applied to the underlying claim for injuries allegedly
caused by electromagnetic field radiation. The policies ex-
clude claims for bodily injury or property damage “arising
out of the actual, alleged or threatened exposure of person(s)
or property to any radioactive matter or any form of radiation.”
That broad language—especially the phrase “any form”—de-
feats Hammond Power’s ambiguity argument. See, e.g.,

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No. 24-1642 7
Bernal v. NRA Group, LLC, 930 F.3d 891, 892, 896 (7th Cir. 2019)
(contract authorized collection of “any amounts” due and
“any costs” incurred; court concluded that “absent limiting
language, ‘any’ should mean ‘any’”); Pierce v. Atchison, Topeka
& Santa Fe Railway Co., 65 F.3d 562, 567–68 (7th Cir. 1995) (con-
tract released “any and all claims” against railway company;
release clearly covered employee’s discrimination claims be-
cause “‘any and all’ language is not ambiguous”); J.G. v.
Wangard, 2008 WI 99, ¶45, 313 Wis. 2d 329, 354, 753 N.W.2d
475, 488 (discussing Wisconsin precedent and explaining that
“the phrase ‘any covered person’ in the policies’ intentional
acts exclusions, like the phrase ‘any insured’ in the Taryn E.F.
policy, unambiguously precludes coverage for all insureds”),
citing Taryn E.F. v. Joshua M.C., 178 Wis. 2d 719, 727, 505
N.W.2d 418, 422 (Wis. App. 1993). In Hammond Power’s pol-
icies, bodily injury arising from “any form of radiation” is ex-
cluded from coverage. So, given that EMF is a form of “radia-
tion,” we agree with the district court that the Micic/Bubanja
lawsuit is excluded from coverage. See Day v. Allstate Indem.
Co., 2011 WI 24, ¶28, 332 Wis. 2d 571, 585, 798 N.W.2d 199, 206
(“We give undefined words and phrases their common and
ordinary meaning.”).
Hammond Power offers several arguments to avoid the ef-
fect of this broad and unambiguous language. It first argues
that the district court erred by focusing on the text of the con-
tracts rather than considering the intent of the parties as part
of the plain-meaning analysis. As noted above, though, insur-
ance policies in Wisconsin are “construed to give effect to the
intent of the parties as expressed in the language of the policy.
Therefore, the first issue in construing an insurance policy is
to determine whether an ambiguity exists regarding the dis-
puted coverage issue.” Folkman, 264 Wis. 2d 617, ¶¶12–13; cf.

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8 No. 24-1642
Kalal, 271 Wis. 2d 633, ¶44 (explaining that courts look to stat-
utory language so that a statute “may be given its full, proper,
and intended effect”). Wisconsin courts look to broader can-
ons of construction only when the plain text is unclear. First
Nat’l Bank of Manitowoc v. Cincinnati Ins. Co., 485 F.3d 971, 976
(7th Cir. 2007) (applying Wisconsin law: “If the language of
the policy is plain and unambiguous, it is enforced as written,
without resort to rules of construction.”). In this case, the dis-
trict court did not err by focusing on the text without refer-
ence to other considerations.
Hammond Power suggests that two cases from AIG’s
opening brief show that “any” should be read narrowly so as
to allow coverage for claims arising from electromagnetic
field radiation. We disagree. In the first, Marotz v. Hallman,
2007 WI 89, 302 Wis. 2d 428, 734 N.W.2d 411, the Wisconsin
Supreme Court interpreted an insurance statute that permit-
ted automobile insurers to reduce their policy limits for acci-
dent coverage based on amounts paid by or on behalf of “any
person or organization that may be legally responsible for the
bodily injury or death for which the payment is made.” Id.
¶22; see also Wisconsin Stat. § 632.32(5)(i)(1). The court held
that the statute encompassed payments made by a fully in-
sured tortfeasor, based in part on the statute’s use of the broad
“any.” Id. ¶¶25, 28. The court also explained, however, that
the statute’s scope was limited by a concluding provision,
which clarified that the statute covered a limited range of pay-
ments: those made “for a bodily injury arising from the acci-
dent.” Id. ¶¶24, 26. In other words, Marotz stands for the prin-
ciple that “any” means “any”—but that a broad universe can
be narrowed by subsequent limiting language.

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No. 24-1642 9
The Marotz principle does not help Hammond Power here.
There are no qualifiers in the exclusion in this case that limit
“any form of radiation” as the language did in Marotz. The
policy language would have a different scope if the exclusion
were written as “any form of radiation that comes from radioac-
tive matter” or “any form of radiation that does not come from
electromagnetic fields.” But that is simply not how the exclusion
is written, and we cannot add language to the contract. Briggs
v. Elec. Auto-Lite Co., 37 Wis. 2d 275, 281, 155 N.W.2d 32, 35
(Wis. 1967) (“We are not free to read into the contract what is
not there….”).
Hammond Power also relies on Manitowoc Co. v. Lanning,
2018 WI 6, 379 Wis. 2d 189, 906 N.W.2d 130, where the Wis-
consin Supreme Court explained that a non-solicitation pro-
vision in the contract of a company’s ex-employee—prohibit-
ing solicitation of “any employee(s)”—meant what it said: the
plaintiff could not solicit any of the company’s 13,000 employ-
ees worldwide. Id. ¶¶25, 46. The opinion included language
about avoiding “absurd results” under the statute that gov-
erned non-compete agreements, see id. ¶45, but there is noth-
ing absurd about giving the exclusion here its broad and clear
meaning. The Manitowoc case also stands for the principle that
broad contractual language should be understood to have a
broad scope.1
Hammond Power’s next textual argument is that the
phrase “any form of radiation” should be read in light of the
1 Manitowoc involved considerations unique to the non-compete con-
text, such as whether the clauses served as an unreasonable restraint of
trade under Wisconsin law. See Manitowoc, 379 Wis. 2d 189, ¶¶24, 63. Still,
the case stands for the principle that broad contractual language means
what it says.

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10 No. 24-1642
preceding phrase, “any radioactive matter.” The disjunctive
“or” separating the two phrases shows that they are meant to
be read separately. Star Direct, Inc. v. Dal Pra, 2009 WI 76, ¶55,
319 Wis. 2d 274, 301, 767 N.W.2d 898, 911 (“The disjunctive
‘or’ plainly separates one from the other.”); Hull v. State Farm
Mut. Auto. Ins. Co., 222 Wis. 2d 627, 638, 586 N.W.2d 863, 867
(Wis. 1998) (the word “or” in an insurance contract was un-
ambiguously disjunctive). This is not a “gossamer” distinc-
tion. An ordinary policyholder would assume that “any form
of radiation” means what it says.
Hammond Power also relies on two related linguistic can-
ons of legal interpretation—ejusdem generis and noscitur a
sociis—but its arguments are unpersuasive for similar rea-
sons. Both canons broadly mean that general terms “may be
defined by the other words [in a list] and understood in the
same general sense.” Schill v. Wisconsin Rapids Sch. Dist., 2010
WI 86, ¶66, 327 Wis. 2d 572, 605, 786 N.W.2d 177, 194.
Ejusdem generis teaches that a catch-all term in a list will
be interpreted in light of the other items in the list. See, e.g.,
Stroede v. Society Ins., 2021 WI 43, ¶14, 397 Wis. 2d 17, 26, 959
N.W.2d 305, 309 (defining the canon); Wisconsin Builders, Inc.
v. General Ins. Co. of America, 65 Wis. 2d 91, 101–03, 221 N.W.2d
832, 837–38 (Wis. 1974) (interpreting insurance exclusion of
“earth movement” in light of subsequent examples of earth
movement). The policies here set out two separate excluded
categories: bodily injuries arising from exposure to radioac-
tive matter and bodily injuries arising from exposure to “any
form of radiation.” There is no catch-all phrase to support ap-
plication of ejusdem generis. Likewise, Wisconsin courts have
held that ejusdem generis does not apply when the plain text
of an insurance exclusion unambiguously applies to certain

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No. 24-1642 11
events even when the language includes a broad phrase in a
list. See Hirschhorn, 338 Wis. 2d 761, ¶35 (broad term “waste”
given its unambiguous meaning; court declined to rewrite us-
ing ejusdem generis).
Similarly, noscitur a sociis teaches that “the meaning of a
doubtful word may be ascertained by reference to the mean-
ing of words associated with it.” In re Nottingham’s Estate, 46
Wis. 2d 580, 589–90, 175 N.W.2d 640, 645 (Wis. 1970) (internal
quotation marks omitted), quoting Broom’s Legal Maxims
447 (8th ed., 1911). As a threshold matter, the meaning of “any
form of radiation” is not “doubtful” as applied to EMF radia-
tion. See, e.g., Benson v. City of Madison, 2017 WI 65, ¶31, 376
Wis. 2d 35, 55, 897 N.W.2d 16, 26 (interpreting state statute
and declining to use noscitur a sociis when “word ‘corpora-
tion’ is not unclear”). The disjunctive “or” also makes it diffi-
cult to characterize the phrase “any form of radiation” as as-
sociated with other words in the exclusion. See id. (explaining
that noscitur a sociis does not warrant non-textual distinc-
tions and collecting cases declining to apply canon).2
2 AIG argues that under Wisconsin law, linguistic canons like ejusdem
generis and noscitur a sociis should be used only when there is ambiguity
in the text. See, e.g., Hirschhorn, 338 Wis. 2d 761, ¶24 (“Absent a finding of
ambiguity, we will not apply rules of construction to rewrite an insurance
policy to bind an insurer to a risk it did not contemplate and for which it
did not receive a premium.”); Smith, 155 Wis. 2d at 811 (“[W]hen the terms
of an insurance policy are plain on their face, the policy must not be re-
written by construction.”); Gonzalez v. City of Franklin, 137 Wis. 2d 109, 122,
403 N.W.2d 747, 752 (Wis. 1987) (same). We see the argument but think
that these canons, which are really just tools for understanding language,
give color to intrinsic textual language and are therefore fair game for in-
itial plain-meaning assessments (assuming the principles announced for
statutory interpretation in Kalal also apply to contract interpretation). See
Kalal, 271 Wis. 2d 633, ¶48 (“[S]cope, context, and purpose are perfectly

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12 No. 24-1642
Hammond Power’s last textual argument is that “any
form of radiation” cannot really mean any form of radiation
because it would then include “sunburn, heat sickness, light-
ning strikes, and microwave burns,” results that Hammond
Power deems absurd. First, we are not convinced these would
be absurd results, given the broad text of the exclusion. And
whether future results might be absurd can be resolved in fu-
ture cases: “these hypothetical facts are not before the court.
We do not reach decisions based on hypothetical facts.” Smith,
155 Wis. 2d at 813–14 (holding underinsured motorist cover-
age did not apply under language of policy, despite insured’s
reliance on “certain hypothetical situations”); see also Marotz,
302 Wis. 2d 428, ¶21 (“Because every possible scenario cannot
be anticipated by the words selected by the legislature, an un-
ambiguous statute in one context may be ambiguous in an-
other.”); Scott v. American Standard Ins. Co. of Wisconsin, 132
Wis. 2d 304, 309, 392 N.W.2d 461, 464 (Wis. App. 1986) (“We
suspect that John Deere’s policy was not drafted with this fact
situation in mind. However, the policy’s language is clear be-
yond peradventure, and it extends coverage to Waters under
the peculiar facts of this case. Where the policy describes cov-
erage in clear and unambiguous terms, we … merely apply
the language of the policy to the facts at hand.”); Hammel v.
Ziegler Financing Corp., 113 Wis. 2d 73, 77, 334 N.W.2d 913, 915
(Wis. App. 1983) (“Common sense tells us that the process of
construing an agreement includes, in addition to the
relevant to a plain-meaning interpretation of an unambiguous statute as
long as the scope, context, and purpose are ascertainable from the text and
structure of the statute itself, rather than extrinsic sources ….”). Either
way, these linguistic canons do not change the outcome here.

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No. 24-1642 13
definition of possible ambiguous terms, the application of the
terms to the case in question.”).
Hammond Power’s cited cases do not require a different
result. Its primary authority, American States Ins. Co. v. Koloms,
applied Illinois law, not Wisconsin law. 177 Ill. 2d 473, 479,
687 N.E.2d 72, 75 (1997). In that case, the Illinois Supreme
Court assessed whether an insurance policy that excluded
bodily injuries arising out of “escape of pollutants” covered
carbon monoxide emissions. The court held, based on exten-
sive drafting history and a concern over absurd results, that
“pollutants” applied only to environmental pollutants, and
not to an accidental release of carbon monoxide due to a
faulty furnace. Id. at 79–82. Koloms does not carry the day in
Wisconsin, given the jurisdiction’s emphasis on plain lan-
guage—a focus that was rejected in Koloms. See id. at 79 (re-
jecting a “purely literal” interpretation of the exclusion).
We agree with AIG that a comparison of Koloms to Connors
v. Zurich American Ins. Co. illustrates the difference between
Illinois and Wisconsin law of policy interpretation. 2015 WI
App 89, 365 Wis. 2d 528, 872 N.W.2d 109. In Connors, the Wis-
consin Court of Appeals concluded that a “standard” pollu-
tion exclusion—similar to the exclusion in Koloms—would
preclude coverage of injuries resulting from Legionella bacte-
ria because such bacteria were “largely undesirable and not
universally present” and therefore qualified as pollutants. Id.
¶35 (internal quotation marks omitted), quoting Wilson Mut.
Ins. Co. v. Falk, 2014 WI 136, ¶38, 360 Wis. 2d 67, 92, 857
N.W.2d 156, 167. While it is not our role to re-litigate Koloms,
we note that carbon monoxide emissions would likely qualify
as “pollutants” under as broad a reading as the court adopted
in Connors. This juxtaposition highlights Wisconsin’s

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14 No. 24-1642
emphasis on plain text and standard application of broad, un-
ambiguous, language.3
B. Non-Textual Arguments
Hammond Power argues next that the district court failed
to apply appropriately several Wisconsin canons of construc-
tion, including the “basic canon” that exclusions are applied
narrowly. But for a court to engage in a narrowing construc-
tion, it must find first that the language is ambiguous, at least
as applied to the facts at issue. See Mau v. North Dakota Ins.
Reserve Fund, 2001 WI 134, ¶13, 248 Wis. 2d 1031, 1042, 637
N.W.2d 45, 50 (“when the language of the policy is plain and
unambiguous, we will enforce the policy as written and not
engage in construction”); see also Phillips v. Parmelee, 2013 WI
105, ¶15, 351 Wis. 2d 758, 765, 840 N.W.2d 713, 716 (“The rule
of narrow construction of an exclusion against the insurer,
however, ‘is not applicable if the policy is unambiguous.’”
(quoting Whirlpool Corp. v. Ziebert, 197 Wis. 2d 144, 152, 539
N.W.2d 883, 886 (Wis. 1995))). We could stop there, but three
of Hammond Power’s further arguments should be ad-
dressed.
The first is that the phrase “any form of radiation” is am-
biguous when read in the broader context of the policies. Ap-
pellant’s Br. at 19. Wisconsin law recognizes that “contextual
ambiguity is established precedent. As a general matter, it has
long been a rule of contract construction in Wisconsin that ‘the
3 Ultimately, the Connors court concluded that the policy was ambig-
uous because it enumerated several categories of covered pollutants, all of
which were byproducts of industrial operations. 365 Wis. 2d 528, ¶57.
Similar defining language in this policy might change the result, but again,
we decline to read in a non-existent limiting clause.

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No. 24-1642 15
meaning of particular provisions in the contract is to be ascer-
tained with reference to the contract as a whole.’” Folkman, 264
Wis. 2d 617, ¶24, quoting Tempelis v. Aetna Cas. & Sur. Co., 169
Wis. 2d 1, 9, 485 N.W.2d 217, 220 (Wis. 1992). We respect that
principle, of course, but the question is “what degree of con-
textual ambiguity is sufficient to engender an objectively rea-
sonable alternative meaning and, thereby, disrupt an in-
surer’s otherwise clear policy language?” Id. ¶30. The Wiscon-
sin Supreme Court answered that question in Folkman, ex-
plaining that “inconsistent provisions, provisions that build
up false expectations, and provisions that produce reasonable
alternative meanings” can create contextual ambiguity. Id.
¶31. The insurance policies at issue in this case offered no
such inconsistencies, false expectations, or reasonable alterna-
tive meanings.
Hammond Power argues that we should find contextual
ambiguity because the exclusion is titled the “Radioactive
Matter Exclusion,” implying that it would apply only to
claims for damages caused by radioactive matter. But the title
alone does not suffice to create ambiguity in an otherwise un-
ambiguous provision. See, e.g., 2 Couch on Insurance § 22:6
(2025) (“while a caption may be used to explain an ambiguity
in the operative part of the clause, a caption may not be used
to create ambiguity where none exists”); Wadzinski v. Auto-
Owners Ins. Co., 2012 WI 75, ¶23, 342 Wis. 2d 311, 329, 818
N.W.2d 819, 827–28 (“interpretation of an insurance policy
cannot rest on a caption alone; the entire policy provision
must be considered” (citing Ott v. All–Star Ins. Corp., 99 Wis.
2d 635, 645, 299 N.W.2d 839, 844 (Wis. 1981) (“it is the sub-
stantive meaning and operation of [the provision], rather than
… the heading of the Article, which must determine its legal
nature and effect”))).

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16 No. 24-1642
Beyond the general rule against letting titles override plain
text, there are other reasons the argument is not persuasive
here. The first is the disjunctive structure of the exclusion. As
discussed above, it highlights that the exclusion applies to
claims for bodily injuries arising from exposure to radioactive
matter or those arising from exposure to “any form of radia-
tion.” Second, AIG argues that Hammond Power’s blinkered
focus on the title would make redundant the phrase “any
form of radiation.” We take arguments about surplusage and
redundancy with a grain of salt, especially in insurance poli-
cies. See Crescent Plaza Hotel Owner, L.P. v. Zurich American Ins.
Co., 20 F.4th 303, 311 (7th Cir. 2021) (“insurance policies often
use overlapping provisions to provide greater certainty on the
scope of coverages and exclusions,” collecting cases). Still, if
the policies here meant “any form of radiation resulting from
radioactive matter,” they would have said that. Instead, the con-
tracts specify that AIG will not cover claims for bodily injuries
arising from radioactive matter or any form of radiation. Wis-
consin law does not let the title of the provision rewrite the
exclusion.
Hammond Power responds with a redundancy argument
of its own. It contends that a broad reading of “any form of
radiation” would make redundant the preceding “radioactive
matter” phrase. The theory is that any harm from radioactive
matter necessarily involves radiation. First, we are not scien-
tists and have no way of assessing whether this is true. But
more important, it is not necessarily redundant for the exclu-
sion to specify both a category of sources (radioactive matter)
and a method of harm (radiation) in the exclusion. This read-
ing is the best way to give effect to “each word or provision of
the contract.” Jones v. Jenkins, 88 Wis. 2d 712, 722, 277 N.W.2d
815, 819 (Wis. 1979).

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No. 24-1642 17
Next, we are unpersuaded by Hammond Power’s argu-
ment that the exclusion should be read differently because it
is “buried near the end of a lengthy policy….” The exclusion
itself states that it “modifies insurance provided under” the
general commercial liability policy. Commercial insurance
contracts are sure to be complex; as a general matter, the loca-
tion of a provision will not alter that provision’s meaning. Cf.
VerHaagh v. Farah, 2008 WI App 83, ¶¶8–10, 312 Wis. 2d 479,
751 N.W.2d 902 (Table) (unpublished; exclusion on page 89 of
policy did not create contextual ambiguity when declarations
section made clear that exclusions were part of the policy).
Hammond Power’s next argument is that its business
model should inform how we read the exclusion. It contends
that “one of the biggest potential liabilities associated with
manufacturing transformers is the EMF radiation emitted
from those transformers.” We assume that is true, but if insur-
ance coverage for such product liability risks and expenses
was so important for Hammond Power, it is fair to ask why it
did not take steps to secure crystal-clear coverage for such
claims. Even drawing all reasonable inferences in favor of
Hammond Power, we cannot assume that the parties in-
tended the policy to cover EMF radiation when the plain text
of the exclusion says that the policy will not cover injuries re-
sulting from “any form of radiation.” This ordinary reading
does not render the policy meaningless or illusory. There are
plenty of bodily-injury risks and other risks associated with
running any business, including this business, that go beyond
EMF radiation. See generally Gillund v. Meridian Mut. Ins. Co.,
2010 WI App 4, ¶27, 323 Wis. 2d 1, 18, 778 N.W.2d 662, 671
(policy is illusory when “a premium was paid for coverage
which would not pay benefits under any reasonably expected
set of circumstances” (internal quotation marks omitted)

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18 No. 24-1642
(quoting Link v. General Cas. Co. of Wisconsin, 185 Wis. 2d 394,
400, 518 N.W.2d 261, 263 (Wis. App. 1994))).4
Finally, Hammond Power relies on extrinsic evidence to
inform how the exclusion should be read. It explains that
other insurance contracts have EMF-specific exclusions—
which it sees as evidence that the policies at issue here could
not have meant to exclude EMF-related injuries. But it is well
established in Wisconsin law that “absent ambiguity, the in-
tent of the parties must be determined from the four corners
of the insurance policy itself.” Sambs v. City of Brookfield, 66
Wis. 2d 296, 317, 224 N.W.2d 582, 593 (Wis. 1975); see also
Johnson Controls, Inc. v. London Mkt., 2010 WI 52, ¶49, 325 Wis.
2d 176, 198, 784 N.W.2d 579, 589 (“The question is what the
language of the 1973–1976 contract does provide, not what the
language could provide or what is provided for in a contract
executed by the parties years later.”). It does not matter that
AIG could have written the policies differently or included
more specific language. Folkman, 264 Wis. 2d 617, ¶42 (“We
may not judicially revise policy language in this manner.”).
The policies’ language is sufficiently clear to exclude from
coverage claims of radiation-related injuries like those alleged
in the Micic/Bubanja lawsuit.
4 In some circumstances, insurance coverage disputes might be easier
to resolve if the parties submitted evidence showing how premiums
change depending on the incorporation of relevant exclusions or riders for
additional coverage. See Wadzinski, 342 Wis. 2d 311, ¶17 n.8 (“Although
the factor of policy cost will not be dispositive in ascertaining the parties’
intentions, the amount paid for coverage may lend support to the conclu-
sion that potentially ambiguous terms should be construed one way rather
than another.”).

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No. 24-1642 19
Because the policies’ exclusion for claims arising from ex-
posure to any form of radiation applies to the underlying law-
suit against Hammond Power, AIG had no duty to defend or
to indemnify Hammond Power for those claims. The judg-
ment of the district court is AFFIRMED.

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