Know where i can take my pits and fissure sealant course to renew my rda license?

Internet: Under your favorite search engine type in the following: "pit and fissure sealant course, (city you live in or closest major city)". I believe every state may not have the same requirements or guidelines so for example, california may be different than texas.

Hygiene study club: I would check with your local professional hygeine organization for study clubs ins your area. There also may be a dental school or hygeine school in your area that offers courses.