40 CFR § 62.14610 - How do I maintain my operator qualification?
To maintain qualification, you must complete an annual review or refresher course of at least 4 hours covering, at a minimum, the five topics described in paragraphs (a) through (e) of this section.
(a) Update of regulations.
(c) Inspection and maintenance.
(e) Discussion of operating problems encountered by attendees.
The following state regulations pages link to this page.