The Confederation of African Football has ended suspensions for 15 national youth teams, freeing up all 54 member states to play competitively.
The ruling affects 10 Under-17 sides and five Under-20 teams.
And it means all are now able to enter qualifying for Africa U-17 Cup of Nations Madagascar 2017 and Africa U-20 Cup of Nations Zambia 2017.
Caf has set a deadline of 31 December 2015 for countries to confirm they will compete in the competitions.
The bans were given for breaches of regulations, including no-shows and age-cheating.
Caf director of communications Junior Binyam told BBC Sport the organisation decided to lift the bans "so as not to deprived youths of those country to miss back-to-back competitions".
Under-17 sides to have had their ban lifted: Benin, Burundi, Central African Republic, Guinea Bissau, Kenya, Liberia, Libya, Mauritania, Sierra Leone and South Sudan.
Under-20 sides to have had their ban lifted: Gambia, Guinea Bissau, Equatorial Guinea, Lesotho and South Sudan.