The main purpose of the One Flag for All Act is to establish a uniform standard for flag displays at public buildings in the United States. The objective is to ensure that only the American flag is displayed prominently, promoting national unity and identity. The key provisions of the Act prohibit the flying, draping, or displaying of any flag other than the American flag at public buildings. This applies to the exterior of these buildings and areas accessible to the public, such as entryways and hallways. However, there are several exceptions to this rule.