To my knowledge no specific group or organization, federal, state, county or municipal goverment, chamber of commerce or Better Business Bureau, or any other recognized regulatory agency offers certification or issues a license for a certification process.
There is an organization for those entering, or wanting to provide video deposition services, but it probably isn't mandatory to establishing yourself in that video service area - at least not in EVERY state, or by every state law bar.
However GREAT or not it may be the Wedding & Event Videograhers Association (WEVA) does offer such a program. Still it isn't a mandatory thing, or necessary to conduct business or establish your bonafied qualifications for providing video production services. Not that many clients really know who or what WEVA is, and like many other association certificates/awards is more of an "internal organization" cap-feather feature than a serious qualification process, or one that will prove a strong marketing tool for you.
There has been discussion by such groups as WEVA regarding establishment of such a certification program, and acceptance of same by either/and/or membership, independent professional video service providers at large, but I doubt this highly independent community of businesspeople will ever accept such requirements voluntarily.
Certification could certainly be a good thing in some respects for our business community, but the process would in so many ways be selective, restrictive, subjective or too costly, or fill in any other complaint here, to ever achieve voluntary, even mandatory compliance.
Educate yourself. Be confident. Establish a qualified referral/client list. Develop a quality demo reel. Tell the truth about your skills and capabilities, and be honest with your clients - then self-regulation is good enough to start calling yourself "professional."
