H.R. No. 559 is a resolution expressing the Texas House of Representatives' support for the rights of COFA (Compact of Free Association) islanders residing in Texas, specifically those from the Republic of Palau, the Republic of the Marshall Islands, and the Federated States of Micronesia. The resolution highlights the strong relationships the U.S. has maintained with these nations since the establishment of their independence through the Compact of Free Association Act of 1985 and subsequent agreements. It notes the recent amendments to these agreements, which enhance access to federal services for veterans and strengthen U.S. military presence in the region, while also acknowledging the contributions of COFA islanders to Texas and the broader U.S. economy.

Additionally, the resolution designates March 18, 2025, as COFA Day in Texas, recognizing the historical significance of the COFA agreements and the impact of COFA islanders in the state. The resolution was adopted by the Texas House on May 19, 2025, with a significant majority vote, reflecting the legislature's commitment to honoring and supporting the rights and contributions of COFA islanders in Texas.