In 1987 - Three years before his death on December 15, 1990 - Ed Parker published Volume V of INFINITE INSIGHTS INTO KENPO. In this book he set forth the minimum requirements for each belt. Those requirements would specify the exact techniques to be taught; the order in which they should be taught and the kata/s required.
Yellow belt has 10 required self defense techniques and all belts Orange through 3rd degree Black Belt have 24 self Defense techniques.
FORTUNATELY FOR THE INSTRUCTOR AND DEDICATED STUDENT = The most authoritative and detailed "written manuals" on American Kenpo Self defense Techniques are available at arnis.org
24 Technique Training Manuals and Videos
as well as a Home Study Course