Boy Scouting provides a series of surmountable obstacles
and steps in overcoming them through the advancement method.
The Boy Scout plans his advancement and progresses at his
own pace as he meets each challenge. The Boy Scout is
rewarded for each achievement, which helps him gain
self-confidence. The steps in the advancement system help a
Boy Scout grow in self-reliance and in the ability to help
others.
It includes all the rank requirements, alternate
requirements for Scouts with disabilities, all of the merit
badge requirements, and what they call "special
opportunities" - World Conservation award, Totin' Chip, etc
This information is from the National Council