In the BSA Boy Scout Training we have the following:

Child Abuse Video - Required of all Adult Leaders

Fast Start - A short video tape.

Basic Leader Training - A short - one day course - Completion of this course earns you a card certifying that you have completed the course. - It also entitles you to wear a "Trained" Strip under your leader patch.

Scoutmaster Fundamentals - A series of lessons (two evening classes and one weekend.  This is a continuation of of training in Scoutcraft and Inter-Personal Relationships.  A prerequisite to Wood Badge.

Woodbadge - Either a one week practical or three weekend practical course.  At the start of the practical part of the course, a candidate is issued a Green Wood Badge Neckerchief, worn with any kind of slide (but NOT the woggle).  This kerchief is worn until the candidate completes his "ticket" -- a set of personal goals the candidate will complete using the skills he/she learned during the practical part of the course.  The ticket must be completed between 6 to 18 months from the completion of the practical part of the course.

Upon completion, a candidate is presented with the Woodbadge Woggle & Kerchief -- A tan kerchief with the McLaren Tarten on the back.  At the same time, he/she is issue their two Wood Badge Beads.

Wood Badge is open to all men and women that meet the minimum qualifications and the Wood Badge Class must have a minimum of 34 candidates.

Continuing in Wood Badge:
Serving on Wood Badge Staff - The Staffer wears three beads.  
Serving as Scoutmaster on a Wood Badge Class - four beads.

I am told the following is true:
Serving on Staff at Gilwell Field - five beads
Serving as Scoutmaster at Gilwell Field - six beads