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Depending on the state you live in, gun registration may or not be necessary. Visit your state's website to get information about its particular gun regulations. If registration is required, read up on the specific requirements for the application process in the section of the website dealing with licensing and regulatory affairs. .  Hawaii and the District of Columbia, for instance, require registration for all guns. New York requires the registration of all handguns. California, Connecticut, Hawaii, Maryland, New Jersey, and New York require the registration of  pre-ban assault weapons and 50 caliber rifles. States like Florida, Georgia, and Idaho prohibit registries of firearms. Hawaii requires all firearms to be registered within 5 days of their acquisition. If your state's website does not provide the information you need about gun registry, contact your state office directly. Look up the department's contact information to get an email address or phone number to communicate with a representative. This information may be listed under a link titled, "Contact Us," "Questions," or something similar. Some state laws require gun owners to register their guns in person at a local police station. Whether or not this applies to your state of residence, law enforcement will be able to provide you with information about gun regulations in your area. Phone or visit your local police department to find out if and how you have to register your gun.
Look up your state's gun laws online before purchasing a gun. Contact your state's firearms department by phone or email for information. Inquire about registration regulations at your local police department.