Bolivia:
19 years of age

Bosnia and Herzegovina:
19 years of age

Botswana:
18 years of age

Brazil:
18 years of age

Brunei:
18 years of age

Bulgaria:
19 years of age

Burma:
18 years of age

Burundi:
16 years of age

Cambodia:
18 years of age

Cameroon:
18 years of age