Issues in relation to which referendums are mandatory at the national level

Ethiopia
TheConstitution of the Federal Democratic Republic of Ethiopia
(Adoptedin August 1995)
http://www.apapeth.org/Docs/constitution%20-english.pdf
Article 39 Rights ofNations, Nationalities, and Peoples (Mandatory referendum)
1. Every Nation, Nationality and People in Ethiopiahas an unconditional right to self-determination, including the right tosecession.
4. The right to self-determination, includingsecession, of every Nation, Nationality and People shall come into effect:
(a) When ademand for secession has been approved by a two-thirds majority of the membersof the Legislative Council of the Nation, Nationality or People concerned;
(b) When theFederal Government has organized a referendum which must take place withinthree years from the time it received the concerned council’s decision forsecession;
(c) When thedemand for secession is supported by majority vote in the referendum;
(d) When theFederal Government will have transferred its powers to the council of theNation, Nationality or People who has voted to secede; and
(e) When thedivision of assets is effected in a manner prescribed by law.
Article 47 Member States ofthe Federal Democratic Republic (Mandatory referendum)
2. Nations, Nationalities andPeoples within the States enumerated in sub-Article 1 of this article have theright to establish, at any time, their own States.
3. The right of any Nation,Nationality or People to form its own state is exercisable under the followingprocedures:
a) When the demand for statehood has beenapproved by a two-thirds majority of the members of the Council of the Nation,Nationality or People concerned, and the demand is presented in writing to theState Council;
b) When the Council that received the demandhas organized a referendum within one year to be held in the Nation,Nationality or People that made the demand;
c) When the demand for statehood issupported by a majority vote in the referendum;
d) When the State Council will havetransferred its powers to the Nation, Nationality or People that made thedemand; and
e) When the new State created by thereferendum without any need for application, directly becomes a member of theFederal Democratic Republic of Ethiopia.
Mandatoryreferendum is foreseen by the Constitution only in two cases; nationalself-determination and devolution