ISO/IEC 17024 has been available for awhile. It deals with the accreditation of training providers, such as ASQ.
I'm not sure which ABs are offering 17024, although perhaps ANSI or NATA. Whether it is neccessary is dependent on whether one believes having training providers held to a consistent standard is of value. Personally, I believe it has value. If anyone doubts that, just look at how many folks are offering training on auditing, measurement uncertainty, 6S, ISO 9001, and ISO/IEC 17025.....and consider how many are actually worth paying to attend.
Just my thoughts.
Hershal