The American Herbalists Guild (AHG) is a professional organization that provides a peer-reviewed professional Registered Herbalist (RH) designation. This RH simply demonstrates that an herbalist has achieved a level of proficiency evaluated and recognized by his or her herbalist peers.
While some herbalists seek to achieve this designation, others do not, as it does require testing, paid membership, and annual renewal. Other people join just to support the American Herbalist Guild itself and have a sense of community.
The AHG offers free monthly webinars to the public so it’s worth signing up to their newsletter at a minimum.