Shelby County, in the covered jurisdiction of Alabama, sued the U.S. Attorney General in the U.S. District Court for D.C. in Washington, D.C, seeking a declaratory judgment that sections 4(b) and 5 are facially unconstitutional and a permanent injunction against their enforcement.
You can file your claim online direct on the USPS site. If you want to make your claim at the Post Office, you must get a copy of PS Form 1000, Domestic Claim or Registered Mail Inquiry. Go to the post office or download it. Fill out the form with all the details required and bring your backup information. To make a damage claim, you must produce evidence of insurance.
If you use the single withholding rate on Form W-4, you are not obligated to claim the single filing status when you file your income taxes. What you claim on Form W-4 is just for withholding purposes.