That would vary depending on the state law, who the person being protected is (child or adult), the severity of the need for the order, and what the issuing judge feels is reasonable. Often the distance is between 100 and 300 yards.
A TRO is governed by Texas Rules of Civil Procedure Rule 680 and Texas Family Code § 6.501. If your spouse wishes to file a TRO that immediately excludes you from possession of or access to your children, a notice of this hearing must be given to you prior to the court date.
If you have been served with a TRO, Read the TRO carefully and obey it. ... Talk with a lawyer right away about your legal rights. ... Make plans to go to the hearing. ... If you need more time to hire a lawyer or more time to get ready for the hearing, you may be able to reschedule the hearing.
Generally, there is a requirement that the alleged abuser stay at least 500 feet away from the residence of the alleged victim or any other location deemed reasonable by the judge to be placed in the protective order.
Stay away: Requires a person to keep a specified distance away from the victim at all times. The common number is 100 yards away. It applies not only to the victim's person, but as well as their home, work, or school.