Federal preemption: This term refers to when federal law takes precedence over state or local laws in certain areas. For example, if there is federal preemption in gun regulation, it means that federal laws regarding firearms would override any conflicting state or local regulations.
Nationwide consistency: This term describes the idea that laws and regulations across the entire country are uniform and consistent. In terms of gun laws, nationwide consistency means that there are similar rules regarding firearm possession, use, sale, and distribution throughout all states.
Jurisdiction: This term refers to a specific geographical area or legal authority where certain laws apply. In relation to regulating firearms, different jurisdictions could include cities, counties, states, or even the entire country.