We have a training program for greenbelt content, but are looking at project/$ requirements after training to certify training participants internally.
Companies such as GE and Motorola of course train and certify their own Six Sigma Black Belts and Master Black Belts but there are private companies that do the training as well. The training requirements are rigorous around statistical analysis and mathematics. It helps to be excellent at Excel and Minitab and have a curious mind. I will attach a good web site to get started and find some private courses. Today, most companies add training for Lean principles into Six Sigma but really they have little intrinsically to do with one another.
Edit:
In that case, I would add some things below, including 101 things a BB should know
Companies such as GE and Motorola of course train and certify their own Six Sigma Black Belts and Master Black Belts but there are private companies that do the training as well. The training requirements are rigorous around statistical analysis and mathematics. It helps to be excellent at Excel and Minitab and have a curious mind. I will attach a good web site to get started and find some private courses. Today, most companies add training for Lean principles into Six Sigma but really they have little intrinsically to do with one another.
Edit:
In that case, I would add some things below, including 101 things a BB should know
http://www.pyzdek.com/101.htm
How to certify:
http://www.pyzdek.com/PDF/2001-03.pdf
An appraisal form
http://www.isixsigma.com/library/content/c030305a.asp
A good practice exam
http://www.qualityamerica.com/Exams/Public/Blackbelt/login.ahtml
Hit me up if you have more questions
(I am a certified BB in case you had not guessed)
I just completed my Green Belt training and am required to complete two projects within 1 year to receive my certification.