H.Res. 149 is a symbolic resolution expressing support for International Mother Language Day, observed annually on February 21st, which promotes the preservation of linguistic and cultural heritage worldwide. The resolution acknowledges that thousands of languages globally are endangered or already extinct, including over 115 Native North American languages that have disappeared and many more currently at risk. It notes that the United States is home to over 350 languages, making linguistic diversity a key part of America's cultural heritage. The resolution does not authorize any funding or create new programs; instead, it encourages Americans to recognize and celebrate International Mother Language Day through ceremonies, programs, and activities. The resolution was introduced by Representative Grace Meng and cosponsors in February 2025 and was referred to the House Committee on Oversight and Government Reform.