This bill designates the Pacific geoduck, scientifically known as Panopea generosa, as the official clam of the state of Washington. A new section is added to chapter 1.20 of the Revised Code of Washington (RCW) to formalize this designation.

The inclusion of the Pacific geoduck as the state clam aims to recognize its significance and promote awareness of this unique species, which is native to Washington's coastal waters. This legislative action highlights the importance of the Pacific geoduck in the state's marine ecosystem and cultural heritage.