If you have done “A level” in Uganda and you want to join college in Kenya then you can apply for recognition of certificate is through https://rev.knqa.go.ke/
The following documents are required;
Before you apply for recognition of your qualifications, kindly confirm with the college you want to join of what they need of you. Some colleges in Kenya will admit any qualified EAC student with "A Level" without the need of verification of documents.
you qualify for degree course if passed A level with atleast two principal and one subsidiary