CDC's test instructions and (more importantly) the target RNA/DNA sequences were posted more like 6 weeks ago -- I think I first noticed them in early February, around the time CDC announced that they had applied for an emergency use waiver from the FDA.
They've been revised considerably since then (with a big "research use only" warning on them added).
Their protocol for clinical labs is a superset of the research protocol. (Clinical labs also have extensive prior experience in this kind of protocol, and many state DPH and other labs are in continuous touch with the CDC through CDC's lab network.)
They've been revised considerably since then (with a big "research use only" warning on them added).