On Monday June 23rd The FAA published new guidance for RCMA operators in the Federal Register.
As a result there have been many articles analyzing, interpreting and reacting the new guidance:
The article that I like the best is by John Goglia, a former NTSB member, at Forbes.com. John Makes the case that the FAA needs to create rules (laws) or exemptions not issue more confusing guidance. He says, "...the FAA's failure to issue rules or exemptions is leading to an unsafe situation."
The current RCMA law is summarized by Peter Sachs (Peter is an attorney) at his site Drone Law Journal. In short, there is no existing law governing RCMA under 55 lbs flying under 400 feet. Everything the FAA is publishing/doing is guidance, not law. The final word on this subject will be the appeal decision on the Pirker v FAA case that is in appeal to the NTSB. A judgement is expected soon.