HB 571 Montana House · 2025 Regular Session

Revise aeronautics laws related to the use of ADS–B information

HB 571 prohibits any government entity or private company within Montana from using Automatic Dependent Surveillance-Broadcast (ADS-B) information to calculate or collect fees from certain aircraft owners or operators. This restriction applies to aircraft with a gross weight of 9,000 pounds or less that operate under Title 14, part 91, Code of Federal Regulations. The bill defines ADS-B as an advanced aviation surveillance technology providing aircraft positioning and other data.
Bill status signed all 5 stages cleared
Introduction
Feb 2025
Committee Review
Apr 2025
House Passage
Apr 2025
Senate Passage
May 2025
Signed into Law
May 2025
Introduced Feb 19, 2025 Signed May 13, 2025
Maddy AI version diff · 4 comparisons

What changed between versions

HB0571_X(1).pdf HB0571_X(2).pdf · 3 edits
MINOR
The bill clarifies that government entities and private companies cannot use ADS-B data to charge fees to aircraft owners or operators. It also corrects a grammatical error in the section title by removing the word 'No' at the beginning of the first sentence.
Scope change
The scope of prohibited fee collection remains the same, but the language now explicitly states that the prohibition applies to entities using the data as a means for calculation, rather than just prohibiting the use of the data itself.
REQUIREMENT

Removed the word 'No' from the start of the first sentence to fix a grammatical error and improve clarity.

Changed the prohibition from banning the 'use' of ADS-B data to banning the use of that data specifically 'as a means for calculating, generating, and collecting fees'.

TECHNICAL

Adjusted line breaks and paragraph structure to improve readability and formatting consistency.

Floor votes · Senate Apr 8, 2025 · House Apr 16, 2025

How they voted

3018
Passed · 2 other
Total votes 50
Apr 8, 2025
D Democratic18
2 Yea 15 Nay 1
83% Nay
R Republican32
28 Yea 3 Nay 1
87% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
40
Key actions
9
Committee
6
Amendments
1
May 8, 2025
Signed into law
(H) Signed by Governor
lower
May 2, 2025
Upper · Passed
(S) Signed by President
upper
Apr 29, 2025
Lower · Passed
(H) Signed by Speaker
lower
Apr 16, 2025
House · Passed
House Vote: pass (66-32-2)
house
Apr 8, 2025
Senate · Passed
Senate Vote: pass (30-18-2)
senate
Apr 8, 2025
Introduced
(S) Returned to House with Amendments
upper
Apr 2, 2025
Upper · Passed
(S) Committee Report - (S) Energy, Technology & Federal Relations
upper
Apr 1, 2025
Upper · Passed
(S) Committee Executive Action - (S) Energy, Technology & Federal Relations
upper
Mar 14, 2025
Committee
(S) Referred to Committee - (S) Energy, Technology & Federal Relations
upper
Feb 27, 2025
Lower · Passed
(H) Committee Report - (H) Transportation
lower
Feb 27, 2025
Lower · Passed
(H) Committee Executive Action - (H) Transportation
lower
Feb 19, 2025
Committee
(H) Referred to Committee - (H) Transportation
lower
Feb 19, 2025
Introduced
(H) Introduced
lower
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Shane Klakken
Shane Klakken
RRepublican
MT
37