ADA doesn't require certification of service dogs, and it's not required as a condition of entry into restaurants, stores, and other public places dogs are not normally allowed. (putnamservicedogs.org)
To be noted, although some states do not require the certification of driving education completion, but all states agree on giving driving examinations for the person who aspire to become a driver. (wannadrive.com)
Neither state requires certification for dental assistants; however, certification can improve career opportunities. (midwesttech.edu)