The Central venous access technique page has been revised to now recommend the use of dynamic US for subclavian CVC insertion.
Kim, JL, Koyfman, A. Does Ultrasonographic Guidance Reduce Failure Rates and Adverse Events for Subclavian Vein Catheterization Compared With the Landmark Technique? Annals of Emergency Medicine http://dx.doi.org/10.1016/j.annemergmed.2015.07.001.