Hello Tony, I will try and answer some of the questions you posted;
1910.178(l)(2)(iii) & (l)(2)(iii) state that all an instructor has to have is the knowledge, training, & experience to be a trainer. I have attended several classes on Train-The-Trainer and have conducted several myself, but there is no where that it states how long your "certification" lasts. It is always good to go to as many training sessions that you can attend to keep up on the new training ideas and the information out there.

1910.178(l)(6) explains the procedures for forklift certifications, the employer is responsible for certifying a new driver. OSHA will not certify anyone, they will give you the proper guidelines that you must follow to train and certify, but it is up to the employer to make sure the certification phase is conducted.

1910.178(l)(2)(ii) talks about what training shall consist of & we use the following format:
Formal training (conducted by a classroom instructor)
Demostration Phase (conducted by a trainer on the floor)
Practical Exercise (conducted by the trainee)
Evaluation (conducted by the floor trainer on the trainee)

After all this is completed the evaluator signs off on all paperwork and then the proper paperwork is filed in the trainees training folder and a copy is sent to the training department and the training department issues the certification card that lists all equipment anad attachments that the new employee is allowed to operate.

I hope this helps with your questions.