Snap tite EMT fittings and ground fault current path

[Rgraefen]

I am a building inspector and recently came across an install where the contractor used the snap in type EMT connectors throughout a residence.
I did a little research and I understand these are listed (E20643).
I want to make sure this product can be used without a grounding conductor. the listing states "Grounding — These fittings are considered suitable for grounding for use in circuits over and under 250 V and where installed in accordance with ANSI/NFPA 70, "National Electrical Code."

When I read the 2011 NEC with respect to EMT, the snap tite connectors are not specifically addressed, but 358.42 says couplings and connectors shall be "made up tight".

With standard connectors, this means no spinning or wiggling of the conduits. With snap tite connectors, this is not the case.

Are these being used and has anybody been questioned about their effectiveness as part of a ground fault current path?

I don't want to prevent their use if they are, in fact, safe.
Thanks!

 

[kwired]

Never seen one, but appears they are listed for the purpose. Seen many FMC/MC/AC fittings that are likely similar in many ways and are listed for grounding also.

 

[infinity]

The connector is tested as part of its listing for bonding. Once it is listed and installed according to its listing that's all you need to be concerned with.