Djibouti:
NA years of age; universal adult
Dominica:
18 years of age; universal
Dominican Republic: 18 years of age, universal and compulsory; married persons regardless of age
note: members of the armed forces and police cannot vote
Ecuador:
18 years of age; universal, compulsory for literate persons
ages 18-65, optional for other eligible voters
Egypt:
18 years of age; universal and compulsory
El Salvador:
18 years of age; universal
Equatorial Guinea:
18 years of age; universal adult
Eritrea:
18 years of age; universal
Estonia:
18 years of age; universal for all Estonian citizens