"When displayed with another flag against a wall from crossed staffs, place the U.S. flag to your left. Its staff should also be in front of the other flag’s staff.
In a group of flags displayed from staffs, the U.S. flag should be at the center and the highest point."
"People commonly violate the Flag Code when displaying the Stars and Stripes on apparel, athletic uniforms or bedding. The only exception is made for military personnel, firemen, policemen and members of patriotic organizations who are allowed to wear a flag patch that is customized for their uniform."
"Is Violating the Flag Code Illegal?
No. While the U.S. Flag Code is a federal law, guidelines are only stated within the voluntary and non-binding language such as, "should" and "custom," meaning there is no penalty for violating any of its provisions. This is because of the Supreme Court's act in declaring the law unconstitutional in United States v. Eichman."
https://www.nbcconnecticut.com/news/national-international/what-is-the-us-flag-code-and-how-does-it-work/2649925/