HF2640 • 2026

A bill for an act prohibiting the intentional emission of air contaminants into the atmosphere, and providing penalties. (Formerly HF 2173 .)

Passed Legislature

This bill passed both chambers and reached final enrollment, even if later executive action is not shown here.

Sponsor: COMMITTEE ON ENVIRONMENTAL PROTECTION
Last action: 2026-03-18
Official status: Subcommittee recommends passage.
Effective date: Not listed

Plain English Breakdown

Using official source text because the generated explanation was unavailable or could not be confirmed against the official bill text.

A bill for an act prohibiting the intentional emission of air contaminants into the atmosphere, and providing penalties. (Formerly HF 2173 .)

A bill for an act prohibiting the intentional emission of air contaminants into the atmosphere, and providing penalties.

What This Bill Does

A bill for an act prohibiting the intentional emission of air contaminants into the atmosphere, and providing penalties.
(Formerly HF 2173 .)

Limits and Unknowns

This entry is temporarily using official source text because the generated explanation could not be confirmed against the official bill text during the last sync.

Bill History

2026-03-18 Iowa Legislature
Subcommittee recommends passage.
2026-03-17 Iowa Legislature
Subcommittee Meeting: 03/18/2026 12:30PM Room 315.
2026-03-10 Iowa Legislature
Subcommittee: Westrich, Knox, and Taylor. S.J. 550 .
2026-03-09 Iowa Legislature
Read first time, referred to Judiciary. S.J. 494 .
2026-03-09 Iowa Legislature
Message from House. S.J. 494 .
2026-03-05 Iowa Legislature
Immediate message. H.J. 601 .
2026-03-05 Iowa Legislature
Passed House , yeas 59, nays 26. H.J. 576 .
2026-03-05 Iowa Legislature
Amendment H-8102 adopted. H.J. 576 .
2026-03-04 Iowa Legislature
Fiscal note .
2026-03-03 Iowa Legislature
Amendment H-8102 filed. H.J. 525 .
2026-02-19 Iowa Legislature
Introduced, placed on calendar. H.J. 350 .

Official Summary Text

A bill for an act prohibiting the intentional emission of air contaminants into the atmosphere, and providing penalties. (Formerly HF 2173 .)

Current Bill Text

Read the full stored bill text

House

File

2640

-

Reprinted

HOUSE

FILE

2640

BY

COMMITTEE

ON

ENVIRONMENTAL

PROTECTION

(SUCCESSOR

TO

HF

2173)

(As

Amended

and

Passed

by

the

House

March

5,

2026

)

A

BILL

FOR

An

Act

prohibiting

the

intentional

emission

of

air

contaminants

1

into

the

atmosphere,

and

providing

penalties.

2

BE

IT

ENACTED

BY

THE

GENERAL

ASSEMBLY

OF

THE

STATE

OF

IOWA:

3

HF

2640

(2)

91

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H.F.

2640

Section

1.

NEW

SECTION

.

708C.1

Weather

engineering.

1

1.

The

emission,

injection,

release,

or

dispersion,

by

any

2

means,

of

a

chemical,

a

chemical

compound,

a

substance,

or

an

3

apparatus

into

the

atmosphere

within

the

borders

of

this

state

4

for

the

express

purpose

of

affecting

the

temperature,

weather,

5

climate,

or

intensity

of

sunlight,

or

any

other

purpose

not

6

presently

regulated

by

state

or

federal

law,

is

prohibited.

7

2.

a.

Any

person,

including

any

public

or

private

8

corporation,

who

violates

this

section

commits

a

class

“D”

9

felony.

For

a

corporation

in

violation

of

this

section,

the

10

officers,

directors,

or

employees

of

the

corporation

shall

11

also

be

subject

to

a

civil

penalty

not

to

exceed

one

hundred

12

thousand

dollars.

13

b.

Each

day

a

violation

of

subsection

1

occurs

constitutes

a

14

separate

offense.

15

3.

This

section

shall

not

apply

to

the

aerial

application

16

of

a

fertilizer,

pesticide,

herbicide,

fungicide,

or

any

other

17

agricultural

input

by

a

licensed

aerial

applicator

or

person

18

acting

under

the

authority

of

federal

or

state

law,

provided

19

such

substance

is

applied

in

accordance

with

all

applicable

20

regulations

and

is

not

intended

or

designed

for

the

express

21

purpose

of

affecting

the

temperature,

weather,

climate,

or

22

intensity

of

sunlight.

23

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