ISACS 03.30 provides comprehenisve guidande on acquisition, possession and use of firearms by civilians - UN High Commissioner for Human Rights

ohchr

“The Coordinating Action on Small Arms mechanism established by the Secretary- General has developed guidance on appropriate control measures, building on the standards described above, best practice guidelines and model regulations that have been developed at the regional and subregional levels. The standards, reflected in International Small Arms Control Standard 03.30 on national regulation of civilian access to small arms and light weapons, provide comprehensive guidance on the acquisition, possession and use of firearms.” 

FULL REPORT — Human rights and the regulation of civilian acquisition, possession and use of firearms: Report of the United Nations High Commissioner for Human Rights