HB 270 Maryland House of Delegates · 2025 Regular Session

Data Center Impact Analysis and Report

HB 270 requires Maryland's Department of Environment, Maryland Energy Administration, and University of Maryland School of Business to jointly study the environmental, energy, and economic impacts of data center development in the state. The analysis must evaluate effects on air/water quality, Chesapeake Bay goals, energy demand and costs for ratepayers, greenhouse gas targets, tax revenues, and job creation. The agencies must submit a final report to the Governor and legislature by September 1, 2026, and the law expires automatically on June 30, 2027. This bill mandates a factual assessment but does not change data center regulations or funding.
Bill status vetoed 4 of 5 stages cleared
Introduction
Oct 2024
Committee Review
Apr 2025
House of Delegates Passage
Apr 2025
Senate Passage
Apr 2025
Vetoed
May 2025
Introduced Oct 28, 2024 Vetoed May 16, 2025
Floor votes · Senate Mar 19, 2025 · House of Delegates Feb 14, 2025

How they voted

421
Passed · 3 other
Total votes 46
Mar 19, 2025
D Democratic33
30 Yea 3
90% Yea
R Republican13
12 Yea 1 Nay
92% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
17
Key actions
9
Committee
6
Amendments
1
May 16, 2025
Vetoed
Vetoed by the Governor (Policy)
executive
Apr 5, 2025
Lower · Passed
Returned Passed
lower
Apr 4, 2025
Upper · Passed
Third Reading Passed
upper
Apr 4, 2025
Upper · Passed
Favorable Adopted
upper
Apr 4, 2025
Upper · Passed
Favorable Report by Education, Energy, and the Environment
upper
Mar 19, 2025
Senate · Passed
Senate Vote: pass (42-1-3)
senate
Feb 17, 2025
Committee
Referred Education, Energy, and the Environment
upper
Feb 14, 2025
Lower · Passed
Third Reading Passed
lower
Feb 12, 2025
Introduced
Floor Amendment {
lower
Feb 11, 2025
Lower · Passed
Motion Special Order until 02/12 (Delegate Grammer) Adopted
lower
Feb 11, 2025
Lower · Passed
Favorable with Amendments {
lower
Feb 10, 2025
Lower · Passed
Favorable with Amendments Report by Economic Matters
lower
Jan 8, 2025
Committee
First Reading Economic Matters
lower
Oct 28, 2024
Introduced
Pre-filed
lower
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Brian Crosby
Brian Crosby
DDemocratic
MD
29B