Clean buildings are essential to meeting our state energy goals. In 2019 the Clean Buildings bill was signed into law, expanded in 2022, and augmented in 2023. The objective is to lower costs and pollution from fossil fuel consumption in the state’s existing covered buildings, multifamily buildings, and campus district energy systems. The law also provides Tier 1 and Tier 2 incentives to encourage building owners to make energy efficiency improvements earlier than required. Learn more about the development and history of the Clean Buildings Performance Standard (PDF).
Tier 1 covered buildings reporting schedule:
- June 1, 2026 – More than 220,000 sq. ft.
- June 1, 2027 – More than 90,000 sq. ft. but less than 220,001 sq. ft.
- June 1, 2028 – More than 50,000 sq. ft. but less than 90,001 sq. ft.
Tier 2 covered buildings reporting schedule:
- July 1, 2027 – More than 20,000 sq. ft. but less than 50,001 sq. ft. and all multifamily residential buildings more than 20,000 sq. ft.
- HB1543 (PDF)
- CR-101 (PDF)
- CR-102 (PDF)
- 2026 CBPS Integrated Document – Proposed rules track changes (PDF)
- HB1543 Rulemaking: Proposed rules- WAC 194-50 (PDF)
How to submit comments
- For written comments use HB1543 Comment Form
- HB1543 Rulemaking Comment Dashboard
- For verbal testimony or comments, please join us during the Public Hearing
- When: May 28, 2026 10:00 AM Pacific Time (US and Canada)
- Register in advance for the May 28 HB1543 rulemaking public hearing
Informational Webinar
- Informational webinar recording (YouTube)
- Informational webinar presentation (PDF)
- Rulemaking and the Clean Buildings Performance Standard Factsheet (PDF)
HB1543 Rulemaking Workshop 1: Extensions and exemptions
- Extensions and exemptions recording (YouTube)
- Extensions and exemptions presentation (PFD)
- Proposed rules on extensions and exemptions (Word)
HB1543 Rulemaking Workshop 2: Alternative compliance pathway
- Alternative compliance pathway recording (YouTube)
- Alternative compliance pathway presentation (PDF)
- For proposed rules, see slides 24-25 of the presentation
- DRAFT Environmental Justice Assessment (PDF)
HB1543 Rulemaking Workshop 3: Clarifying language
- Clarifying language recording (YouTube)
- Clarifying language presentation (PDF)
- Proposed rules for clarifying language (Word)
- Public Comment Form
HB1543 Rulemaking- Workshop 4: Comprehensive Review
How to submit an exemption application
- When: May 5, 2026, 10 – 11 a.m.
- Register for the May 5 webinar.
How to submit a Tier 1 compliance application
- When: May 6, 2026, 10 – 11 a.m.
- Register for the May 6 webinar.
After registering, you will receive a confirmation email containing information about joining the webinar.
CBPS Tier 1 compliance
CBPS Tier 2 compliance
CBPS Document Library
CBPS Support
CBPS Grants and Incentives
News and updates
Resources
- Frequently Asked Questions (PDF)
- Clean Buildings Performance Standard Integrated Document (Smartsheet Form)
- Clean Buildings Helpdesk for free consultation
A dedicated space outside of our scheduled trainings and workshops to connect with our Clean Buildings staff, ask questions, talk through scenarios and more. “Office Hours” are held on the 4th Tuesday of every month from 10:00 a.m. to 11:00 a.m. PT.