250.146A states Direct contact between the BOX & the Yoke or Device.250.146 B then states Contact devices or YOKES designed and Listed as self grounding ect ect.
Thoses sections are refering to Yoke & Device connections Not Box cover connections.
The 2002,2005,2008 Code handbooks all have the same info and pics! Guess there all wrong then???
Yoopersup