Child Booster Seat Safety When Traveling With Kids Still In A Car/ Booster Seat What State Laws Should I Follow?

When traveling with kids still in a car/ booster seat what state laws should I follow? - child booster seat safety

I am planning a trip for my family and I have a 3-year-old son, who is in a child seat. The head office is in the following law of the state in which we live, is located. If you are traveling and that (I think my state law because it is our home) or I have the right of each state, we follow up (4 countries) pass? Every state is different, so a seat can be different types according to the state and its legal requirement means. I found the laws for child safety seats for each state, by travel, I do not know if the laws to state residents, or any other person shall travel through the state. What should I do or where I can find this information?