To learn more about credentialing requirements to work in Oklahoma please use the following links: Requirements to work as a CNA in Oklahoma Requirements to work as an LPN or RN in OklahomaRelated ArticlesWho Do You Hire?Missouri LPN & RN Credentialing RequirementsNew Mexico Credentialing RequirementsNew Mexico CNA Credentialing RequirementsNew Mexico LPN & RN Credentialing Requirements