Some local jurisdictions in the U.S. have more restrictive laws , such as Washington , D.C. 's Firearms Control Regulations Act of 1975 , which banned residents from owning handguns .
Some local jurisdictions in the U.S. required permitted firearms be disassembled and locked with a trigger lock .
Some local jurisdictions in the U.S. have more restrictive laws , such as Washington , D.C. 's Firearms Control Regulations Act of 1975 , which banned residents from owning handguns , and required permitted firearms be disassembled and locked with a trigger lock .