The staged activity badges have been designed to provide a unified approach throughout the sections. 

There are six activity badges staged across the sections.
This means that a young person can gain whichever badge is appropriate to the level they have reached. It is possible, for example, for a Beaver Scout who is an excellent swimmer to gain a higher level badge than a Scout who has just taken up the activity.
A young person should always wear only the highest of each staged badge type that they have gained on the uniform.