Pilot the drones safely and legally (18.07.2017)
Other / CAA

Cabinet of Ministers Regulation No. 737  "The Procedures for Performing Flights of an Unmanned Aircraft or Movements of Other Such Type of Machine, which are not Classified as Aircraft" refers to any person who owns or possesses unmanned aerial vehicles (drone) or who wishes to operate unmanned aerial vehicles, as well as to merchants and Persons organizing unmanned aircraft flights.

More information:
Cabinet of Ministers Regulation No. 737.
Restricted Flight Areas - https://ais.lgs.lv/VFR_Suport/
European legislative framework.