Environmental protection, ecology, all Latvia
State Environmental Service, Daugavpils Regional Environmental Administration, Inland Water Control Section
Raiņa 28, Daugavpils, LV-5401
Nature Protection Administration, Gauja National Park Administration, Office Kārļukalns
"Kārļukalns" , Drabešu pagasts, Cēsu nov., LV-4101
Nature Protection Administration, Regional administration of Vidzeme, Salacgriva office
Rīgas 10a, Salacgrīva, Limbažu nov., LV-4033
State Inspection for the Protection of Cultural Monuments, Latgale regional department
Baznīcas 19, Rēzekne, LV-4601
State Inspection for the Protection of Cultural Monuments, Riga regional department
Pils 22, Rīga, LV-1050
State Inspection for the Protection of Cultural Monuments, Kurzeme regional department
Baznīcas 9-10, Kuldīga, Kuldīgas nov., LV-3301
State Inspection for the Protection of Cultural Monuments, Zemgale regional department
Pils 22, Rīga, LV-1050
Daugavpils University study and research center Ilgas
"Ilgas" , Skrudalienas pagasts, Augšdaugavas nov., LV-5470
Society for the Protection of Nature and Monuments of Latvia, Alūksne department
Pils 74, Alūksne, Alūksnes nov., LV-4301