You are welcome in the El Salvador with your UAV.
It took us 14 weeks to get the UAV rules from the El Salvador Civil Aviation.
Here they are:
Maximum take-off weight: -
Maximum hight: 121 meters. / 400 ft.
Maximum horizontal distance: Keep visual eye contact with the UAV
Maximum distance persons: 30 meters / 100 ft.
Minimum age: -
Insurance: not known
Distance Airports / Heliports: 8 km / 4.17 mi
Night flights: Prohibited
Prohibited: not above crowds, houses unless you have permission from the owner, not above military objects, stadiums, rescue workers.
Useful link: El Salvador’s Directorate General of Civil Aviation
Contact information: firstname.lastname@example.org / +503 229504 33