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Bill

HB 1543

Increasing compliance pathways for the clean buildings performance standard.

2025-2026 Regular Session Introduced by Liz Berry and 7 co-sponsors

Washington law expands compliance pathways for buildings under the Clean Buildings Performance Standard, effective July 27, 2025, providing more flexible options to meet energy efficiency requirements.

Effective date 7/27/2025.
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Bill Summary · HB 1543

Legislative bill overview

HB 1543 expands the compliance options available to building owners under Washington's Clean Buildings Performance Standard (CBPS), which requires large buildings to meet energy efficiency targets. The bill creates additional pathways for buildings to demonstrate compliance beyond the existing performance metrics, likely through alternative measures such as energy retrofits, renewable energy adoption, or other sustainability improvements.

Why is this important

The CBPS is a cornerstone of Washington's climate policy, targeting significant emissions reductions from the building sector—one of the largest sources of greenhouse gas emissions. By increasing compliance flexibility, this bill may reduce costs for building owners while maintaining environmental goals, potentially preventing legal challenges and improving implementation success across diverse building types and economic circumstances.

Potential points of contention

  • Cost burden on property owners: Expanded pathways might still require substantial capital investment for retrofits or upgrades, potentially affecting smaller building owners or those in less wealthy areas differently
  • Environmental integrity concerns: Additional compliance options could allow some buildings to meet standards through less effective measures, potentially delaying meaningful emissions reductions
  • Equity implications: Varying compliance costs across building types and locations may create disparate impacts, with some property owners able to afford alternatives while others face narrower options

Compiled from official sources — confirm details with the bill’s official record.

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