Issues of sub-national referendums regulated at the national level

Kenya
Answer
None
Source
Laws of Kenya, Constitution 2010 (amendments up to 2019), accessed 22 August 2022
Kenya, IEBC, Elections Act 24 of 2011 (Revised Edition 2019), accessed 22 August 2022
Kenya, Referendum (No 2) Bill, 2020, accessed 22 August 2022