Is Washington WAC 51-54A-1207 in force?

Yes. In force from Mar 15, 2024.

Which products does Washington WAC 51-54A-1207 affect?

Washington WAC 51-54A-1207 affects Residential energy storage systems and Commercial and utility energy storage systems.

When does Washington WAC 51-54A-1207 take effect?

The effective date on file is March 15, 2024.

Washington

WAC 51-54A-1207

PartialRead in the state’s own source. It stays partial until the passage is on file word for word.

What does Washington WAC 51-54A-1207 do? Requires storage systems above set thresholds, such as 20 kWh for lithium-ion, to be Listed to UL 9540, with spacing and location limits. In homes, it caps units at 20 kWh, limits totals to 40 or 80 kWh by location, and bars installation in sleeping rooms.

Facts

Kind: Code amendment
Status: In force
Stage: In force
Signed or decided: March 15, 2024
Effective: March 15, 2024
Topics: Fire protection and siting, Permitting, Recycling and end of life
Products: Residential energy storage systems Commercial and utility energy storage systems
Source: Washington State Legislature (opens in a new tab)

The state’s codes

The codes that reach each product this law names, with the edition Washington is on. Each links to the record.

For information only. Your local building or fire official decides which code applies. We check state records often but can miss a recent change, so confirm with your official before you design, permit, or install. Terms of use