Training Providers This category references organizations that provide training, including courses, conferences, trade shows, symposiums, seminars, exhibitions, workshops and home study programs. Video-based and computer based training (CBT) programs are included. This category covers only national training centers. Good regional sources may include state/regional agencies and assistance groups. Although most consulting firms offer some type of training, only those that offer "regularly scheduled - national training" are referenced in this category. Related References Organizations that offer degree programs are not referenced here - see the EnviroSource category Universities/Colleges. Note: Many publishers also sell training materials, such as manuals and video tapes. Therefore, see the EnviroSource category Publishers.