Under the OAS Model Regulations implementing the Inter-American Firearms Convention, a licence is required to export FC Column 1 items (0A501 except .y, 0A502, 0A504 except .f, 0A505 except .d, 0A506, 0A507, 0A508, 0A509) to OAS member countries marked on the Country Chart; licences are generally issued on an FC Import Certificate or equivalent from the importing government and approved unless linked to drug trafficking, terrorism or organised crime; shipments depend on the certificate's validity (748.12(d)(3)).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.