The Chinese have had restrictions in the amount of children that a family can have, for few decades it was one child, now it is two. Even thought the limit is increased to two children per family, it is a number that will allow the nation to keep it's population on a status quo level.
India, has it worst, the government has not been able to make a solid plan that can be implemented, the wast majority of the population is uneducated, and there's still the pride in having more children, so the population is still growing very fast.
The Kenyan government made a long term development plan, which as a main goal has to achieve a high quality life for all Kenyans that is sustainable with available resources. Also contraceptive coverage, and educating the population with videos, presentations, talks.
